No it doesn't, it is grammatically correct as is.
(B) is the answer, this was the tactic used
Answer:
Last summer, I had to work on a local project where we helped primary students with their homework and the subjects that they struggle with the most.
Doing this for an extended period can be tiring and get you frustrated if you do not see any improvements. To avoid this, it is important to stay motivated.
Motivation is crucial to keep yourself engaged. In my case, I used different strategies. The first one was to help children in the subjects that I enjoy and that I know the most. The second one was to talk with the kids and try to make the explanation funny and easy for them, which is a challenge since not all the children are the same. Finding different ways to explain or activities that could help them was something that kept me engaged. Lastly, talking with professionals that could help me when I was lost or demotivated was a key point for me.
There are different strategies that someone can use to keep engaged in a project. Even if you are not interested, there are other things related to the project that can bring you joy and keep you going.
Explanation:
In this text, there is a description of ways to keep someone engaged in a project for an extended period from a personal experience. In this case, the key to keeping someone engaged in a project was the motivation and how a person can find it in different situations or activities that are different according to the situation.
