Question

the narrator discovers...
a that the brothers are bankers and that the
bank note he has is real.

b that the brothers have left and they have made
a bet on him, but he is unaware of the terms of
the bet.

c that the brothers are con - artists attempting to
trick him with a bet, but he plans to trick them
back.

d that the brothers have made a bet to see what
sort of situation (or job) he can get in london
before the month is up.

Explanation:

This question refers to Mark Twain's The Million Pound Bank Note. The narrator learns the brothers placed a bet: one believed the note would let him survive and thrive in London for a month without work, the other did not. He discovers the bet's core terms about his ability to secure a situation/job in London within the month. Option A is wrong because he knows the note is real but the brothers aren't bankers; Option B is wrong because he learns the bet's key terms; Option C is wrong because the brothers are not con-artists, just making a social experiment bet.

Answer:

D. that the brothers have made a bet to see what sort of situation (or job) he can get in London before the month is up.