Which sentence below demonstrates correct subject-verb agreement?
A.
Mindy and Wilma am running to catch the bus, but it left without them.
B.
Mindy and Wilma was running to catch the bus, but it left without them.
C.
Mindy and Wilma runs to catch the bus, but it left without them.
D.
Mindy and Wilma were running to catch the bus, but it left without them.