Multiple Choice 9. Every complete statement ends with an) A) period B) # symbol C) semicolon D) ending brace 10. Which of the following statements is correct? A) #include (iostream) B) #include fiostream) C) #include D) #include iostream) E) All of the above 11. Every C++ program must have a A) cout statement B) function main C) #include statement D) All of the above 2. Preprocessor directives begin with A) # B) ! C) D) all of the above will do 15. Which of the following are not valid assignment statements? (Select all that apply.) A) total = 9: B) 72 = amount: C) profit = 129 D) letter = 'W