How are we supposed to know what to "highlight"
But we don't have the passage sooooo
Answer:
Dependent clause.
Explanation:
A noun clause is a dependent clause that acts like a noun. They can act as subjects, direct/indirect objects. But noun clauses can begin with when, where, how, what, who, why...
Conjunction, “If” is a conjunctional term that begins a sentence with a dependent clause