In Kaya's teacher's desk there are 3 pink highlighters, 7 yellow highlighters, and 5 blue highlighters. How many highlighters are there in all?  Choose the correct answer:
A) 11  B) 15  C) 77  D) 33  E) 88

Rationale: "add the numbers of highlighters . 3 + 7 + 5 = 15 . answer is b ."
Answer: B