The correct demostrative adjective is esos. Because the sentence is plural and masculin. Esos—> plural, masculin Esas—> plural, feminin Esa—> singular, feminin Ese—> singular, masculin (I’m a spanish student)
Demonstrative pronouns are those pronouns that we use to show objects by pointing out their situation with respect to a certain person.
The demonstrative pronouns are divided into three series according to the distance at which the indicated point of the issuer is found. It also presents variations of gender and number.
So we find these series:
"este, esta, esto, estos y estas" denote the closeness of the above regarding the issuer;
"ese, esa, eso, esos y esas" denote the closeness of what has been indicated regarding the receiver;
"aquel, aquello, aquella, aquellos y aquellas" denote distance from what is indicated with respect to the sender and the receiver.
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