Where are auxins synthesized in a plant? Which organ of the plant shows:
(i) Positive phototropism
(ii) Negative geotropism
(iii) Positive hydrotropism
a) Auxins are synthesized in the apical meristem; Stem
b) Auxins are synthesized in the root cap; Root
c) Auxins are synthesized in the leaves; Leaf
d) Auxins are synthesized in the shoot apex; Root