Tax-Free Withdrawals Can Be Made from an RRSP Under Which

Tax-free withdrawals can be made from an RRSP under which of the following circumstances?

A) Each spouse can withdraw $40 000 tax-free for the purchase of a house.
B) You can withdraw $10 000 under the Lifelong Learning Plan to educate your children.
C) You can withdraw any amount necessary to pay off your mortgage if over 55 years of age.
D) You can withdraw $10 000 for two years for your spouse to be a full time student.