You'll be alert, engrosed in the (14)material.And concentrated 100 percent.

Question

a) no change
b) material, and
c) material; and
d) material and

After reading it over and over,
I think b) a comma after material
would be the correct answer.

I think this is a compound sentence, since material is the subject for verb 'engrossed' is that
right?

Answer 1

B is correct; however, it is not a compound sentence. It is a simple sentence with compound predicate adjectives = alert, engrossed, concentrated.

Answer 2

thanks : )