A. Monarch butterflies are important pollinators, but their global population is falling.
B. Scientists think that habitat loss and pesticides probably caused this.
C. There was an `86%` fall in the number of butterflies that they saw.
D. In California, an organisation found that there were very few monarch butterflies visiting during this 2018 winter.

Options

A. ADCB
B. ACBD
C. ABCD
D. ACDB

Answer

C

Explanation

BC साथ आयेंगे (they = scientists)