The example of the sentence is a Subordinating Conjunction
Conjunctions are words used to combine simple sentences together to give them a meaning.
Conjuction can be categorized into subordinate and coordinating conjunction.
A coordinating conjunction is a word that joins two elements of equal grammatical rank and syntactic importance. Examples are are for, on etc...
A subordinate conjunction in the other hand is a phrase that gives a sentence meaning. Based on the sentence, she caught her hair is the phrase that complements the sentence.
Hence Subordinating Conjunction is the correct answer
Learn more on subordinating Conjunction here; https://brainly.com/question/932543
