en 24 An example of a unary operator is: to red Select one: d out of O a. The % arithmetic operator. question O b. The < relational operator. O . The ! logical operator. O d. The = assignment operator. -23 The following function definition is correctint f1(int a, b){ return a+(2*b);} ed Select one: out of O a. True O b. False question on 25 Unless otherwise specified, entire arrays are passed and individual array elements are passed red Select one: d out of O a. By reference, by reference. O b. By reference, by value. question O . By value, by value. O d. By value, by reference. 22 A recursive function is a function that: ed Select one: out of O a. Takes 3 arguments. O b. Returns a double. question O c ls inside of another function. O d. Calls itself, directly or indirectly.