Which of these is not a simple sentence?

a.
We ate far too much at the party.
c.
We all were ready to go by seven o'clock.
b.
The fact that I got an invitation at all is a pretty significant achievement.
d.
Even though Miguel spent so much time on that present for Chuy, his friend didn't seem impressed.


Please select the best answer from the choices provided

A
B
C
D

1 answer

b. The fact that I got an invitation at all is a pretty significant achievement.