The best answer is B. coal . . . lead. The mining industry in the Indian Territory initially focused on coal mining but later expanded to include lead and other minerals.
The mining industry in the Indian Territory began with __________, but later expanded to __________ and other minerals.
A.
gold . . . coal
B.
coal . . . lead
C.
zinc . . . petroleum
D.
silver . . . lead
Please select the best answer from the choices provided
A
B
C
D
1 answer