Those given actions are examples of the President of the United States' role as chief of state.
Answer: Option B
Explanation:
The president acts in the role of both the head of states of the U.S, the head of governments and the commanders-in-chief for the armed forces. According to article. II in the Constitutions, The President is more responsible to implement and enforce the laws developed by Congress.
In many countries, this chief of state's, also referred as the head of state's, is the figurehead representing the country during his term of office. The head of states participate in public events, gets foreign ambassadors and visit abroad on behalf of his country.
