What cholesterol level range is considered borderline?

• A. Less than 170
• B. Greater than 200
• C. 200-250
• D. 170-199

Answer: (D)

Borderline means the value sits between normal and high—not normal, but not high enough to be labeled outright high. It’s a caution zone that signals you should watch this result, often with lifestyle adjustments and follow-up testing rather than aggressive treatment.

In this question, the range that falls into that in-between category is the one that is above the normal cutoff but still below the high cutoff. The other ranges are clearly outside that middle area: one is below normal, and the others are in the high range. So that in-between range best matches what “borderline” describes.