Answer: Un día ella saltó el pasamanos del patio.
Explanation: We need to complete the sentence:
"Un día ella ___________________ el pasamanos del patio."
The first thing you need to notice is that the verbal person is "ella", so from the given options, we must select the one that is conjugated with "ella"
A) Salté: this is for "Yo salté"
B) Saltaste: This is for "Tu saltaste"
C) Saltó: this is for "ella saltó"
D) Saltábamos: this is for "nosotros saltábamos"
So the correct option is C; saltó
Un día ella saltó el pasamanos del patio.
