My question was deleted because it was "incomplete", but I'll answer again.
Simple
This sentence is simple because it contains one singular idea. It may be incorrectly identified as compound because the subject is compound (Forest rangers and volunteers). This is an easy mistake.
Hope this helps!! Good luck, mate. :)
The answer is C! you’re welcome
I hope u get it good luck
I believe it would be, Xavier and I have been discussing our ideas in the ashford cafe.
Me and myself just doesn't sound right.
