Answer:
yo bro you gonna have to make it clear what you want help solving like the question or sum
CYOKININS is the correct option. Cytokinins is one of the types of plant hormones and it is usually produced in the root apical meristem, that is, at the very tip of the root. The hormone delays aging in plants and it also involve in repair of wounded plant parts.
The answer to your question would be low annual rainful
it cant be hot, because some deserts are cold
and they arent always simple
and they dont all have bad soil
so, the best answer would be A