What sentence is written using formal style?

Question

A. Changes in the world's climate affect weather patterns, and this increases the frequency of drought and floods.
B. Some of the hugest amounts of carbon emissions are created by farmers who don't follow good farming practices.
C. I mean, farmers should obviously support climate change actions because their farms are at stake.
D. I have never been able to understand why so many people cannot grasp the urgency of climate change.

Answer 1

A. Changes in the world's climate affect weather patterns, and this increases the frequency of drought and floods.