If the parents seem excited, open-minded, helpful, and optimistic, their behavior indicates that they _____

a. agree with the way things are going in the school.
b. are about to launch their own school.
c. want to build a new curriculum.
d. are secretly angry, but just biding their time for the next presidential elections.
e. are perhaps confused about the vision and mission of the school.

a. agree with the way things are going in the school.

The behavior of the parents being described indicates that they likely agree with the way things are going in the school (option a). Their excitement, open-mindedness, helpfulness, and optimism are positive attributes that would suggest they are supportive of the current direction and initiatives of the school.

To determine the correct answer, let's analyze the given information. The parents' behavior is described as excited, open-minded, helpful, and optimistic. Based on this information, we can make an inference about their attitude and intentions.

The behavior described suggests that the parents are positive and supportive. They seem interested and enthusiastic about something related to the school.

Option (a) suggests that they agree with the way things are going in the school. This is a possibility, as their excitement and positivity could indicate that they are satisfied with the current state of the school and its progress.

Option (b) speculates that they are about to launch their own school. However, there is no explicit information provided to support this answer choice. We cannot conclude that they are starting their own school based solely on their behavior.

Option (c) states that they want to build a new curriculum. While this is another possibility, it is not explicitly mentioned in the given information. Therefore, we cannot confirm this as the correct answer.

Option (d) assumes that they are secretly angry, but this contradicts the behavior described. Their excitement, open-mindedness, and optimism do not align with hidden anger.

Option (e) suggests that they are confused about the vision and mission of the school. However, the given information does not imply confusion. Their attitude seems positive, indicating that they have a clear understanding and are in support of the vision and mission of the school.

Considering the information provided, the most plausible answer is option (a). Their enthusiastic and supportive behavior implies that they agree with the way things are going in the school.