Accumulation of which one of the following acids results in closure of stomata

Accumulation of which one of the following acids results closure of stomata :-

Accumalation of which one of the following results in closure of stomata?

Which one of the following does not cause opening of stomata?

Which of the following lacks stomata?

Accumulation of which of the following molecules in the muscles occurs as a result of vigorous exercise ?

Which one of the following hcave sunken stomata ?

Which of the following are function of the stomata ?

Latest explanation for closure of stomata is

Which of the following is observed during stomatal closure ?