Match the columns:
a-ii, b-i, c-iv, d-iii
a-i, b-ii, c-iv, d-iii
a-ii, b-i, c-iii, d-iv
a-i, b-ii, c-iii, d-iv
IAA- Indole compounds
GA- Terpenes
Ethylene- Gas
Cytokinin- Adenine derivatives