Which word best completes the sentence?

Carolina es _____ amiga simpatica?

una

ella

un

el

una

What type of islands are the Galapagos islands?

continental

barrier

volcanic

coral

volcanic

The word "una" best completes the sentence: Carolina es una amiga simpatica?

To determine which word best completes the sentence "Carolina es _____ amiga simpática?", we need to understand the meaning of the sentence and the grammatical rules of the Spanish language.

The sentence translates to "Carolina is _____ a nice friend?" In Spanish, adjectives need to agree in gender and number with the noun they describe. Since "amiga" is a feminine noun, we need a feminine form of the adjective.

The word "una" is the feminine singular form of the indefinite article "a/an" in Spanish, which agrees with the gender and number of the noun. In this case, "una" agrees with the feminine singular noun "amiga" (friend). Therefore, "una" is the word that best completes the sentence.

So, the best answer is: una.