Sam often forgets to lock his flat. The value he puts on his flat and all the possessions inside it is £100,000. Given Sam's forgetfulness, the probability of a burglary is 30%. If his flat gets broken into, he faces a property loss of £10,000. What is his expected wealth?

A. £80,000
B. £87,000
C. £97,000
D. £99,000