Answer:
If the noun/thing is masculine (male) or feminine (female) in Spanish, then the article changes. (ex. the woman = la mujer)
Step-by-step explanation:
There are 4 articles in Spanish, they are: la, las, el, and Los.
Los and las are used before plural nouns. Los is used with masculine plural words, and las is used with feminine plural words.
So if a Spanish word ends in a, it will be femenine (but not all!)
If a word ends in e, o, s, etc. It will become masculine.
Exceptions are ma, pa, and ta.