What is the percentage of occurrence of Imperata spp?

The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), Sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?

A. 35%
B. 16%
C. 46%
D. 23%

Correct Answer:

Option C – 46%