9. A family has three children, ages 5, 7, and 10. If we assume that the probability of giving birth to a boy is the same as the probability of giving birth to a girl, determine the following probabilities. BBB BBG BGB BGG GBB GBG GGB GGG A. P(three girls) B. P(at least two boys) C. P(the oldest is a girl) D. P(Exactly two children are of the same gender) E. P(there are an equal number of boys and girls)