Select whether the sentence below is a simple, compound, complex or compound-complex sentence.


When we visited the museum, we also marveled at documents containing historical accounts written thousands of years ago; the accounts are recorded on clay and stone.
a.
Simple
c.
Compound-Complex
b.
Compound
d.
Complex


Please select the best answer from the choices provided

A
B
C
D

c. Compound-Complex