This question tests how well you can tell a genuine deduction apart from a simple repeat of the passage or an assumption the passage does not back. Read the caselet once more: Goodricke is prioritizing its core competence (tea production and marketing), it plans to spend Rs. 10 crore modernizing factories, and its profit grew from Rs. 3.76 crore to Rs. 5.49 crore between 2005 and 2006. Go through each option and ask whether it follows from the facts, or whether it just repeats them or adds something new.
Ruling out the three options that either repeat the passage or add an unsupported cause-effect link leaves the option about furthering the company's interests as the one that is properly deduced from the facts given.
Let's summarize:
So the correct choice is that core competence can be used for furthering the company's interests.