Each of the Following Hypothetical Syllogisms Is Missing Its Second

Each of the following hypothetical syllogisms is missing its second premise.Which of them commits the fallacy of affirming the consequent?

A) If the stock market crashed, then Caroline will lose her house.So Caroline will lose her house.
B) If the vase fell from the table, then it is irreparably damaged.So the vase fell from the table.
C) If the class meets only two days per week, then it is 25 minutes longer.So the class is 25 minutes longer.
D) If a new radio tower were built, then my cell phone reception would improve.So my cell phone reception will not improve.
E) If Oscar finishes, this will be his 18th marathon.So this is his 18th marathon.