Answer:
C. A firm handshake is expected in the United States.
Explanation:
Numeral C) is the only item listed in the question that is true. In the United States, a firm handshake is expected between business partners, both to salute, and also to close a deal. A firm handshake is seen both as a sign of mutual respect and trust.
In other countries, like Japan for example, handshakes are actually frowned upon, because in Japanese Culture, physical contact is only reserved for close-friends and family. For this reason, In Japan the equivalent gesture is a bow: it also signifies respect and trust among the parties.