Mathematics period was immediately followed by Chemistry.
A.Only 1
B.Either 1 only or 2 only
C.Only 2
D.Only 1 and either 2 or 3
Answer:D
Mathematics period was immediately followed by Chemistry.
A.Only 1 B.Either 1 only or 2 only C.Only 2 D.Only 1 and either 2 or 3