Select the statements below which are true concerning contracts (there may be more than one correct answer)

A. When the full scope is predictable and known, a cost-plus contract is the appropriate contract to use

B. With a fixed rate contract the full price is known at the time of contract signing

C. In a cost plus fixed fee contract, the final price will include the price for the actual costs plus a fixed fee that does not vary

D. A cost plus fee and fixed rate contract are the same