To answer this question, we need to analyze the statements given and determine their logical consistency.
Statement 1: Mara runs faster than Gail.
Statement 2: Lily runs faster than Mara.
Statement 3: Gail runs faster than Lily.
Let's analyze these statements one by one:
Statement 1: Mara runs faster than Gail.
This statement is clear and consistent. We can assume it to be true.
Statement 2: Lily runs faster than Mara.
This statement contradicts the first statement. If Mara runs faster than Gail and Lily runs faster than Mara, it is not possible for Gail to run faster than Lily. Therefore, this statement is false.
Statement 3: Gail runs faster than Lily.
This statement contradicts the second statement. Since the second statement is false, we cannot determine the truth value of the third statement based on the given information.
Therefore, the correct answer is B. false.