Answer:
I can see that there are no choices.
mate-guarding
Step-by-step explanation:
"Alternative mating strategies" are being used by either female or male animals in order to defend the mating partner from another potential partner.
In order to access the certainty of the male to the female, the male uses the strategy of mate-guarding. This means that the male makes sure that he guards the female and wards off intruders. This also prevents the female to seek other potential partners.
So, this explains the answer.