The correct answer is: C. Either I or II is implicit
The statement “I have not received telephone bills for nine months inspite of several complaints” does not explicitly state that the customer has a right to receive bills regularly from the telephone company, nor does it explicitly state that the customer’s complaints point to a defect in the services which are expected to be corrected. However, both of these assumptions are reasonable inferences that can be made from the statement.
It is reasonable to assume that the customer has a right to receive bills regularly from the telephone company because this is a common practice among telephone companies. It is also reasonable to assume that the customer’s complaints point to a defect in the services which are expected to be corrected because the customer has made several complaints and has not received a response.
Therefore, either assumption I or assumption II is implicit in the statement.