1. <span>A. Avoid collaborating with others, so as not to be distracted.
Avoiding collaboration will not help him, collaboration is a great tool to get different perspectives and reinforce study habits.
2. </span><span>C. Find a tutor.
A tutor can help Chethen break down the material into manageable chunks and walk him through the processes step by step until he understands them.
3. </span><span>B. Make studying a part of his daily routine.
If studying becomes part of his daily routine, Chethen will make it a habit and he will increase his productivity and effectiveness.</span>
We they loved the culture just like they love children
Hope this helps
Adverb clause is being used in this sentence