For the distribution described below, complete parts (a) and (b) below. The annual incomes of all those in a statistics class, including the instructo a. How many modes are expected for the distribution? O A. The distribution is probably uniform O B. The distribution is probably unimodal. O C. The distribution is probably bimodal. O D. The distribution is probably trimodal. b. Is the distribution expected to be symmetric, left-skewed, or right-skewed? O A. The distribution is probably symmetric. O B. The distribution is probably right-skewed. O C. The distribution is probably left-skewed. O D. None of these descriptions probably describe the distribution