After each of the following sentences, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for each sentence.
He has just been made the new Chief Executive so he will need sometime to learn the ropes. This means that with time he will

• A.fix new gadgets in his new office
• B.clear the abandoned things on the site
• C.master the demands of his new office
• D.learn the use of ropes in his new office