The scenario that matches the expression is:
B.
Linda has blue and yellow ribbons on her desk. The blue ribbon is 3/4 of a meter long, and the yellow ribbon is 1/4 of a meter long. How many times longer is the blue ribbon than the yellow ribbon?
In this scenario, you can find how many times longer 3/4 is than 1/4 by dividing the lengths:
(3/4) รท (1/4) = 3.
Therefore, the blue ribbon is 3 times longer than the yellow ribbon.