Answer:
An independent clause
Explanation:
An independent clause is a group of words containing a subject, a verb, and other parts, and that can stand alone as a full sentence or it can be accompanied by other clauses and it would make sense anyway.
The first part of the sentence given is a dependent clause, which means that it needs to be with another clause to make sense, as it does not have full meaning on its own. Thus, we need a clause that can complete the sentence, and an independent clause is perfect for this task.
Some ways to complete the sentence are (the words underlined is the independent clause):
If I save enough money, I will visit my grandma' this Christmas.
If I save enough money, I will take you to Alabama.
