Apply the absolute value to each number. In other words, remove the negative sign to determine the positive version of that number.
-0.55 turns into 0.55
-0.35 turns into 0.35
-0.25 turns into 0.25
-0.45 turns into 0.45
The smallest result is 0.25, which is closest to 0. The closer r is to 0, the weaker the correlation.
Answer: Choice C) -0.25