Construct an explanation about the role of photosynthesis in the cycling of matter into and out
of organisms.

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey

Ithink that b is correct but just in case wait to see if someone else answers