When all the five stages are present in the life cycle of rust, it is known as

A. Cuform

B. Macrocyclic

C. Both A and B

D. Microcyclic

Answer: Option B

Solution(By Examveda Team)

When all five stages are present in the life cycle of rust, it is known as Macrocyclic.
All rusts are obligate parasites, meaning that they require a living host to complete their life cycle. All 5 stages of their life cycle are Pycniospores, Aeciospores, Urediniospores, Teliospores and Basidiospores.
The one where all these five stages are present is termed Macrocyclic.