c++

(10 points) 4. Identify valid variable names from the list below. If an item on the list is not valid you should write one sentence describing why it is invalid: a.) hunter b.) 123 c.) a/b d.) a b e.) a-b f.) #define h.) number one i.) xrated j.) int (10 points) 5. Which of the following are the correct C++ statements? a.) x+1 = y-2; b.) x = x+1; c.) y = 2: d.) 2y - 14