Alex received a statement from his bank that listed his checking account balance as -$42.50.what does this number mean

A) the bank owes Alex $42.50
B)Alex wrote checks for $42.50 more than the amount he had in his checking account
C)Alex is still able to write checks up to a total of $42.50
D)the bank deleted $42.50 from Alex’s checking account

B) Alex wrote checks for $42.50 more than the amount he had in his checking account