My trainer encourages me to eat healthy and get plenty of sleep because important to my training goals. which correctly punctuated word completes the sentence? its's its its' it's

The answer is D; it's. The reason behind this is that the sentence is expressing that IT IS important to their training goals. Since you need the words "it is" to complete the meaning of the sentence, it's clear that the conjunction makes the most sense instead of the other options that are attempts at possessive nouns.

The answer would be it's because it is important to my training goals. without using both words, but knowing the meaning it would be more accurate because it's important to understand to take out add on such as to my training goals. so it would be something like My trainer encourages me to eat healthy and get plenty of sleep because it's important. not all correct sentence will sound right either. 

Omit means cleave out .