(चल मेरी घोड़ी टिक टिक टिक intensifies)

Couldn't this also be "He is my horse" or "She is my horse" ? I tried both and both were marked wrong.

Edit: I asked a native speaker and they said "yes" it could be He or She, but if it was "She is my horse" then it would be "वह मेरा घोड़ी है।" The word घोड़ा is male or generic/unknown.