Step 1 :Determine whether the random variable x is discrete or continuous. Let x represent the height of a randomly selected giraffe.
Step 2 :Choose the correct answer from the given options.
Step 3 :The height of a giraffe is a continuous variable because it can take on any value within a certain range. It is not limited to specific, countable values.
Step 4 :Therefore, the random variable x, representing the height of a randomly selected giraffe, is continuous.
Step 5 :\(\boxed{\text{B. The random variable is continuous, because it has an uncountable number of possible outcomes.}}\)