ANSWER: B
REASONING
Let’s start with A, a positive times a positive is still a positive, so 0.25 x 2.7 can NOT be negative
Next b, -.25 x 2.7, a negative number times a positive number is always negative so we know that b is negative.
C and D both have 2 negative numbers, a negative x a negative is always positive.
So the answer is B with the only negative.