28 A function prototype does not have to: Select one: out of O a. Match with all calls to the function. O b. Include parameter names. O c Agree with the function definition. O d. Terminate with a semicolon. 29 srand: red Select one: d out of O a ls unnecessary in C++. O b. Should be used instead of rand to generate truly random numbers. an O Should be cailed before each call to rand. O d. Can use the time function's retum value as an optimal seed value.