In "Sonnet 55," what is the main idea of the second quatrain?

The beauty of the person addressed will outlive all wars.

The beauty of the person addressed will cause the speaker to go to war.

The war on Mars will soon be over.

The beauty of the person addressed will outlive all wars.

Explanation:

Sonnet 55 by William Shakespeare talks about the power poetry has, since as long as the sonnet is read, the person described in the sonnet still lives.

Second Quatrain:

"When wasteful war shall statues overturn" = even when wars will destroy monuments ...

"And broils root out the work of masonry," = and battles will destroy stone buildings

"Nor Mars his sword nor war's quick fire shall burn the living record of your memory." = not even Mars' sword of fire (the Roman god of war) will destroy this register of our memory (that is, the present poem).