Write the next sentence in the following story.

How to understand fractions
Identify the numerator.
A fraction is always written with one number on top of a line and another number underneath that line. The numerator of a fraction is the top number.

Choices:
[i] It is the " part " of the " whole " that you are talking about. For example, in the fraction , 1 is the numerator..
[ii] It is connected by an " x " number. The numerator usually acts as the base after the numbers that it belongs to..
[iii] Denominator two can give you more decimal answers than decimal numbers. To calculate fractions using fractions, you first need to discover the numerator for every fraction in a fraction..
[iv] Understand the numerator's number system. The numerator of a fraction to understand fractions is one multiplied and multiplied... The answer should be
[i]