To determine the minimum number of points Kelly needs to score on the 60-point test to achieve at least 75%, we can calculate it as follows:
- Calculate 75% of 60 points: \[ 0.75 \times 60 = 45 \]
Kelly needs to score at least 45 points to pass the class.
So, the least number of points that she must score to achieve this goal is 45.
The correct answer is 45.