What role did military engineers play in the rescue operation?

Question

A
Military engineers employed the rat-hole mining technique to reach the workers.

B
Military engineers oversaw the project, which aims to connect four Hindu pilgrimage sites.

C
Military engineers advised rescue crews and told reporters that the workers were in positive spirits.

D
Military engineers explained that they employed geologically sound techniques to make tunnels safer

Answer 1

A
Military engineers employed the rat-hole mining technique to reach the workers.