Which of the Following Quotes Best Illustrates the Idea of Marginal

Multiple Choice

Which of the following quotes best illustrates the idea of marginal product?

A) "If I have 10 workers on my assembly line,I can produce 13 tables a day."
B) "If I add an 11th worker,I can produce 1 extra table a day."
C) "Each worker produces 2 tables a day."
D) "I find if I add an extra shift at night,table production only rises by 80 percent because I need more maintenance time on the assembly line."
E) "If I double workers and double the assembly line,I can make 120 percent more tables."