The correct translation for "the flowers are red" in Spanish is "Ellas son rojas."
Here's a brief explanation of the options provided:
- Ellas somos rojas. (Incorrect: "somos" is the first-person plural form)
- Ellas son rojas. (Correct: "son" is the third-person plural form)
- Ellas es rojas. (Incorrect: "es" is the third-person singular form)
- Ellas está rojas. (Incorrect: "está" is used for temporary states, and it should be "son" for permanent characteristics)
So, "Ellas son rojas" is the right choice.