Answer:
The correct answer is exclamatory sentence.
Step-by-step explanation:
Exclamatory sentences, also known as exclamative sentences or exclamations, are one of the four sentence types, which express strong feelings or opinions.
Such Exclamatory sentences may be classified according to their function, when exclamations are made using an exclamation mark and according to their form, which has to do with their word arrangement since they begin with "what" or "how" in a non-interrogative way.
Bearing in mind the described above, it could be said that the sentence provided; "ouch that hurts" is an example of an exclamatory sentence in function.