Animals that depend on primary carnivores for food are labelled as:
Primary producer
Tertiary producer
Secondary carnivores
Primary herbivores
As we have already discussed in Functions of Ecosystem: Energy Flow -
Carnivores -
The consumers that feed on these herbivores are carnivores or more correctly primary carnivores (though secondary consumers)
- wherein
Those animals that depend on the primary carnivores for food are labelled secondary carnivores
Hence, the correct option is (c).