OK, let's go through these words one-by-one:

a) inflation -- "wage inflation" would presumably result in more buying power for the individual and therefore not imply any reason for multiple jobs.

b) stagnation -- if the wages are staying still (stagnant) while the rest of the economy inflates, as it is wont to do, then this would give the person less buying power and imply a need for multiple jobs. This is the answer.

c) sequestration -- this means separating or isolating from other things. How could wages be separated or isolated and how would this suggest a need for multiple jobs? I really don't know--you tell me--but it isn't the right answer.

d) remuneration -- this means "payment." First, "wage payment" is a sort of redundant concept because a wage is a payment. It is pretty neutral because we don't know how much someone gets paid, and it might be a very small amount or a very large amount. However, there's no implication that it would encourage someone to take multiple jobs.

e) consolidation -- this means "bringing together." Wage consolidation might make sense in some awkward way if one were to consolidate wages from multiple jobs in one bank account, but it doesn't imply the need for multiple jobs.

The answer is B.