Which sentence below contains an incorrect verb form?
A.
Both snakes are docile and rarely attack humans, but it's still important to be able to tell the difference.
B.
At first glance, the coral snake and the milksnake may look alike; however, they be quite different.
C.
The coral snake is the most venomous of the two and can be distinguished by its red on yellow markings.
D.
The milksnake is nonvenomous and can be characterized by its red on black color bands.