Answer:
Achieving excellent grades throughout your time at school can lead you to bigger and better colleges and universities. Working hard can lead to the things you 'want to do', not want you've 'got to do' to carry on your future.
The best answer among the following choices would be the second option B) because C) and D) are normal sentences while B) is complex and A) is fine but needs to replace ''has a tendency'' with ''tends''.
