The use of iron and steel is very much common in most of the infrastructure being built today. The new methods developed for the production of these essential metals have helped hasten and loosen the supply for the demand. By that, buildings have sufficient supply of these metals.
This is parallelism; its the foundation of hebrew poetry.
C the alps provided protection
Japan ( Hiroshima and Nagasaki)
But, I don't how are there more than 1 country recovering from atomic bomb explosion
Im not 100% sure but i think its A
Both talk about equality in one way or another