Use this subject pronoun when talking about a girl. (1 point)

Ο ΕΙ
O Yo
O Ellas
O Ella

O Ella

The correct answer is "O Ella."

The correct subject pronoun to use when talking about a girl is "Ella." This pronoun refers to a singular female subject. In order to determine this answer, you could have followed a few steps:

1. Identify that the question is asking for a subject pronoun to refer to a girl.
2. Understand that a subject pronoun is used to replace or represent a noun as the subject of a sentence.
3. Recall the different subject pronouns in the Greek language and eliminate the ones that do not refer to a girl.
4. Choose the correct subject pronoun "Ella," which corresponds to a singular female subject.