Question

what led to improved grades and attendance at clintondale high school? principal green was encouraged by the test results. principal green flipped every class in the school. failure rates decreased by 25 percent. students college acceptance rates went up.

Explanation:

The question asks for the cause of improved grades and attendance. Options A, C, and D describe outcomes or reactions to the improvements, not the initiating action that led to them. Only flipping classes is a proactive change that would cause the listed positive results.

Answer:

B. Principal Green flipped every class in the school.