The Likelihood of Company A's Stock Price Rising Is 20

Multiple Choice

The likelihood of Company A's stock price rising is 20%, and the likelihood of Company B's stock price rising is 30%. Assume that the returns of Company A and Company B stock are independent of each other. The probability that the stock price of at least one of the companies will rise is ________.

A) 6%.
B) 10%.
C) 44%.
D) 50%.