A is my guess. Not 100% sure. Can someone help me understand independent quantities better? :)

Charlie buys three energy bars for each day of his three-day hike. Depending on the brand, the cost of each bar is between $3.25 and $4.50. What is the independent quantity?
the number of energy bars purchased **
the total cost of the bars
the price of each energy bar
the type of hiking shoes Charlie wears

Question

A is my guess. Not 100% sure. Can someone help me understand independent quantities better? :)

Charlie buys three energy bars for each day of his three-day hike. Depending on the brand, the cost of each bar is between $3.25 and $4.50. What is the independent quantity?
the number of energy bars purchased **
the total cost of the bars
the price of each energy bar
the type of hiking shoes Charlie wears

anonymous · Answer

what do you think

anonymous · Answer

.. The beginning of the post says I think it's A but not sure.