I'm very confused on Solubility and Temperature. Please Help!

Imagine you have two beakers. Both beakers are filled with the same amount of water. The water in both beakers is the same temperature as well. You add 50 g of Substance A to the first beaker, and 50 g of Substance B to the second beaker. After stirring both beakers, there is a small pile of Substance B at the bottom of the second beaker. None of Substance A is visible in the first beaker. Which of the following statements is true?

Select one:
a. Substance B is not soluble in water
b. Substance A is not soluble in water
c. Substance A is less soluble in water than Substance B.
d. Substance A is more soluble in water than Substance B.