The correct option is D Both A and C
A. Dermal scales are the projections from the dermis of an animal.
B. Epidermal scales are the extension of epidermal layer into projections.
C. Lateral line organs is a system of sense organs (for the perception of vibration, movement or pressure in the surrounding water) present in aquatic vertebrates such as fishes.
Fishes have dermal scales such as placoid scales and have lateral line sense organs.
Hence, both options A and C are correct. So, the correct answer is 'Both A and C'.