Answer: C) increased number of predators
Step-by-step explanation:
Antelope are the deer like mammals. They belong to the family of Bovidae. They have hollow horns, which deer do not posses. These animals are native of Savanna biome of Africa.
These are herbivorous animals. According to the given situation, grass which can be the source of food for these animals will be plentiful due to rainfall thus there will be no competition for food among these animals. Thus these animals can only be reduced by the increase in the number of predators.