Which is a compound sentence?

Question

A) Gardening has many therapeutic benefits.
B) In reality, exercising can be something as simple as planting seeds or pulling out weeds.
C) This magnificent project is funded by a grant from Green Planet Organics as part of their Gardens Grow Great Communities program.
D) I’m Mayor Kenndrick, and I’m thrilled to announce the launch of Wessex County’s first community garden here at South Falls High School.***

Answer 1

I’m Mayor Kenndrick.

I’m thrilled to announce the launch of Wessex County’s first community garden here at South Falls High School.

Either half can perfectly well stand alone.
So
I agree with you :)

Answer 2

i agree too but i dont have an explanation