Which of the following sentences uses the correct subject/verb agreement?

A. Meat and potatoes is a common dinner combination in many countries. ('is' is underlined)

B. Rice and beans are a common dinner combination in Brazil. ('are' is underlined)

C. Rice and sometimes many kinds of vegetables are commonly eaten in Asia. ('is' is underlined)

D. Peanut butter and jelly are my favorite lunch sandwich. ('are' is underlined)