Can someone who holds a Type B (car) driving license drive a 125 cc motorcycle

A)Yes, but at least 3 years must have passed since obtaining the Type B license.Correct
B)No, they must strictly hold a Type A1 license.
C)No, they must hold a Type A license.

According to DGT rules, a Type B license holder can drive a 125 cc motorcycle in Spain once they have held their car license for at least 3 years.