Respuesta :
Hi
Son los pantalones de Roberto. Son sus pantalones.
A- tus ==> your + plural noun (not formal)
B- mis ==> mines + pl. noun
C- sus ==> his + pl. noun (his + your plural and formal)
D- su ==> his + sing. noun (his + your formal)
+ singular noun + plural noun
yo mi mis
tú tu tus (informal)
él/ella/Us su sus
nosotros nuestro/ nuestra nuestros/nuestras
vosotros vuestro/vuestra vuestros/vuestras
ellos/ellas/Uds su sus
They are Roberto's trousers. They are his trousers.
The possessive adjective agrees in gender and number with the possessed noun, annd NOT with the possessor
Your answer is C sus
Explanation:
sus means their
for the a p e x people too.