The option that best supports the claim that Southeast Asia has diverse cultural influences is B. Minangkabau wedding ceremonies blend Hindu and native traditions. You can see that they merge two traditions - Hindu and native, which tells a lot about the cultural influences.
A policy adopted by US in the cold war, it was aimed at containing the influence of Soviet Union and communism around the globe. Because they were seeing soviet's expanding influence as a challenge to their hegemony. US used various strategies to contain it varying from creating a buffer for Soviet, and taking major states of the world under confidence