What were the consequences of snake bites for slaves in colonial Brazil?

I- The slaves were often left mutilated and blind.
II- The bites could cause serious inflammation and gangrene, leading to the loss of fingers and toes.
III- The slaves had access to effective medical treatment.
IV- The bites were not a significant problem for the slaves.
a) I and II are correct.
b) II and III are correct.
c) I and IV are correct.
d) II and IV are correct.