The answer is D. Python.
A mamba, krait, and cobra are all venomous snakes. A python is a non-venomous snake.
Mambas are a group of venomous snakes found in Africa. They are the fastest snakes in the world, and they can reach speeds of up to 20 mph. Mambas are typically black or brown, and they have a slender body. They are ambush predators, and they typically hunt small mammals, birds, and reptiles.
Kraits are a group of venomous snakes found in Asia. They are typically small to medium-sized snakes, and they have a slender body. Kraits are nocturnal predators, and they typically hunt small mammals, birds, and reptiles.
Cobra snakes are a group of venomous snakes found in Africa, Asia, and Australia. They are typically medium-sized to large snakes, and they have a broad body. Cobras are typically terrestrial predators, and they typically hunt small mammals, birds, and reptiles.
Pythons are a group of non-venomous snakes found in Africa, Asia, and Australia. They are the largest snakes in the world, and they can reach lengths of up to 30 feet. Pythons are typically constrictors, and they kill their prey by wrapping their body around it and squeezing it until it suffocates.