Given a prompt and four completions, select the completion that is the most plausible in continuing or answering the prompt. This task is designed to test common sense and has various categories ranging between idioms, negated statements, polysemy, subject referencing, and quantitative reasoning. Generate either Completion A, Completion B, Completion C, or Completion D.
Q: Prompt: Global air traffic has been rising steadily for years and 2018 is no exception. Euromonitor International's research covers 600 cities and, they say, global inbound arrivals are
Completion A: covers 600 cities
Completion B: expected to grow by 5% this year
Completion C: expected to decrease by 5% this year
Completion D: expected to decrease steadily this year
A:
Completion B