Choice 3 because the word "they're" is reffering to they are but "they are" does not make sence in the sentence...!!! hope this helps :)
in 1960 there was a strike called the Delano grape strike
Answer: the answer is d) sad.
Explanation: it is a feeling on pensive sadness.
5 minutes all the way up to fifteen is 10 minutes 15 to 25 is ten more then 25 to 35 is ten more so in all about so it takes karla about 30 minutes