Suppose that having a male child and having a female child are independent events and that the probability of each is 1/2. A couple has decided they want to have 10 children total. They already have 5 male children and are about to have another child. Select all statements which must be true.

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%