In higher latitudes where lakes freeze over in winter, how do cool autumn temperatures help fish make it through the winter?

The cooling water slows fish metabolisms down and allows them to go into hibernation in winter.

Water from the bottom of the lake raises and provides oxygen to the cooler waters on the surface.

Cool water at the surface traps nutrients deep in the lake to provide food during the winter.

The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels.

@Abhisar @Somy

Question

In higher latitudes where lakes freeze over in winter, how do cool autumn temperatures help fish make it through the winter?

 The cooling water slows fish metabolisms down and allows them to go into hibernation in winter.

 Water from the bottom of the lake raises and provides oxygen to the cooler waters on the surface.

 Cool water at the surface traps nutrients deep in the lake to provide food during the winter.

 The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels.

@Abhisar @Somy

anonymous · Answer

@eliassaab @tanya123

tanya123 · Answer

I'm not sure, but I think the last one 

" The water in contact with the air sinks and mixes with the less oxygenated water in the deeper levels."

somy · Answer

im kinda thinking its 
Cool water at the surface traps nutrients deep in the lake to provide food during the winter.

tanya123 · Answer

Yeah, I thought that one before, so maybe @Somy is right.

anonymous · Answer

:S what do you guys think?

somy · Answer

hmmm idk i see this question answered couple of times and they say its B
but i don't get why ~_~

anonymous · Answer

~_~ this really sucks :/

anonymous · Answer

@tanya123 Can you explain why u think its B?

somy · Answer

tanya thinks its D

tanya123 · Answer

LOL Somy

anonymous · Answer

oh so everyone thingks all the options -- lol

anonymous · Answer

@phi

somy · Answer

lol idk even D kinda makes sense lol

tanya123 · Answer

@Compassionate might confirm, I don't seem to find anyone online who can help!!

anonymous · Answer

Ok. that would be great @tanya123 @Compassionate @Somy

somy · Answer

yeah well idk ppl said its B 
but its Definitely NOT B

somy · Answer

most suitable answers would be either C or D

anonymous · Answer

@Abhisar would you be able to settle the disagreement? or @Compassionate

compassionate · Answer

Well... water takes away oxygen... when water freezes, nutrients at the bottom must be trapped... There is no surface water because it's frozen...

anonymous · Answer

So you say D? @Compassionate

compassionate · Answer

Fish don't even hibernate...

compassionate · Answer

Since the water is dense, nutrients will be dragged to the bottom... D.

anonymous · Answer

Thanks