When Jane visits a beach, she notices a sea stack has formed offshore. Which of the following best describes what caused the sea stack to form?

Erosion hollowed out the rock in a seaside cliff.

Deposition moved sand from the beach into an offshore pile.

A large number of shells were carried out to sea by the waves.

Water levels rose until the sea completely surrounded a rocky section of beach.

Question

When Jane visits a beach, she notices a sea stack has formed offshore. Which of the following best describes what caused the sea stack to form? 

 Erosion hollowed out the rock in a seaside cliff. 

 Deposition moved sand from the beach into an offshore pile. 

 A large number of shells were carried out to sea by the waves. 

 Water levels rose until the sea completely surrounded a rocky section of beach.

anonymous · Answer

ok lets take a look at this:
erosion of the rock on the beach - there is no mentioning of rocks on the beach (at least Jane didnt mention them)
deposition moved sand - this is what i would say cause that is how sand beaches are formed
large number of shells - ??? there are no shells mentioned in by Jane
water rose - well again Jane didnt mention any rocks...