Assume that the current Bid - Ask of the US Dollar against the South African rand is quoted as R14.95-R15.02 per dollar, which of the following statement/s is TRUE? O a. None of the options provided are true. O b. The mid-rate can be estimated as R14.95. OC. In this example, the South African Rand is the base currency. Od. In the context of South Africa, the bid-ask rate above is an example of an indirect quotation. Oe. R15.02 is the rate at which customers can sell the US Dollar to a South African bank.