How smart are dogs 2 paragraph ?
explanation

Dog intelligence or dog cognition is the process in dogs of acquiring, storing in memory, retrieving, combining, comparing, and using in new situations information and conceptual skills.

Studies have shown that dogs display many behaviors associated with intelligence. They have advanced memory skills, and are able to read and react appropriately to human body language such as gesturing and pointing, and to understand human voice commands. Dogs demonstrate a theory of mind by engaging in deception.

Iwould say d) signed unknown street singers who brought original songs to record.