Suppose $x$ Is a Random Variable Best Described by a Uniform Probability

Multiple Choice

Suppose $x$ is a random variable best described by a uniform probability distribution with $c = 5$ and $d = 11$ . Find the value of a that makes the following probability statement true: $P ( x \leq a ) = 1$ .

A) $a \geq 5$
B) $a \leq 11$
C) $a \geq 11$
D) $a \leq 5$