please help

"Desde cuando _____ tu y Marta?" "Desde que ella fue a Costa Rica."
a. se dan la mano
b. se dicen "Hola!"
c. se escriben
d. se encuentran

since when ...... you and Marta? since that...?
i don't understand athe question or the answers please help

Since when ________ Martha and you? Since she went to Costa Rica.

a. they sh ake hands
b. they say "Hi"
c. they write to each other
d. they meet

Remember that 3rd person plural, in addition to "they" can be "you-all."

Sra

The question is asking about the duration or the period of time when a certain action or interaction has been happening between the speaker and Marta. To understand the question and choose the correct answer, you need to comprehend the context and identify the action being referred to.

Let's analyze the options:

a. se dan la mano (shake hands)
b. se dicen "Hola!" (say "Hello!" to each other)
c. se escriben (write to each other)
d. se encuentran (meet each other)

The correct answer can be determined by looking at the response provided by the speaker: "Desde que ella fue a Costa Rica." This means that the action has been happening since the time when Marta went to Costa Rica.

Since people don't usually write letters or meet each other when one person goes to another country, and handshakes usually happen when people see each other, the most appropriate answer would be:

d. se encuentran (meet each other)

So, the correct completion of the sentence would be:
"Desde cuando te encuentras con Marta?" "Desde que ella fue a Costa Rica." (Since when do you meet Marta? Since she went to Costa Rica.)

Remember, understanding the context and analyzing the options given are crucial to making an informed choice.