If there is a republican president and a democratic congress, then there will likely be
a. a conference committee for debate.
b. pro-democratic legislation.
c. a legislative stalemate.
d. pro-republican legislation.

If there is a Republican President and a Democratic Congress, then there will likely be:

c. A legislative stalemate.

Explanation:

The act that the President and the Congress be from different political parties causes a legislative stalemate because they are two sides of the same coin: the President can negotiate treaties or redact projects of law, but their approval is in hands of the Congress, in opposite case, the Congress can approve projects of law, but these require the approval of the President too and, if their relationship isn't good, all projects of law mentioned could stay without implementation.

This is pure competition because there is no one farmer or company that is in charge of the price of goods being sold. Also, the farmers are all, most likely, selling the same products or products considering crop farming is a seasonal task.