Answer: C. the primary consumers would die out or move elsewhere
Step-by-step explanation:
A food chain is a linear sequence of transfer of food and energy when one organism is consumed by other organism in an ecosystem. The grasses and shrubs are included in the food chain as producers, the large diversity of herbivores or primary consumers are dependent on them.
According to the given situation, if the grasses and shrubs are removed from an ecosystem than this will lead to the mortality of the population of primary consumers or the populations may migrate to other locations in search of food.