Which of the following explains why chemists use standard temperatures and pressures when conducting chemical

Which of the following explains why chemists use standard temperatures and pressures when conducting chemical reactions?

A) Chemical reactions are temperature dependent.
B) Chemical reactions are neither temperature nor pressure dependent.
C) Chemical reactions can only occur at standard temperature and pressure.
D) Chemical reactions are irreversible at standard temperature and pressure.

I don't want to just answer this for you, but I'll tell you that many chemical reactions are reversible and ask you a question: have you ever or have you ever seen anyone heat something to make a chemical reaction happen? This might have happened while baking or cooking, not just watching bunsen burners or hot plates. If so, do you think these reactions would happen if you let it stay at room temperature? Does a cake bake if you just leave the batter on the kitchen counter? Do you think it fair to compare a cake baked in the oven to one that sat on the counter for the same amount of time? Could I draw the same conclusion about the chemical reactions of both of these?

Also, your body is at not at Standard Temperature, chemical reactions occur in there.

Hope this helps