Consider the following statements regarding the Repo rate:

a. It is the rate at which RBI lends money to Commercial Banks generally against Government Securities.

b. The Reserve Bank of India can increase or decrease the repo rate depending on inflation and thus, it can control the economy of the country.

c. It is the rate at which the RBI is ready to buy or rediscount bills of exchange or other commercial papers.

Which of the statements given above is/are correct?