Select the appropriate correction to the following sentence: You shouldn't pat a strange dog, sometimes they're not friendly.
Select one:
a. You shouldn't pat a strange dog, "sometimes they're not friendly."
b. You should'nt pat a strange dog - sometimes theyre not friendly.
c. You shouldn't pat a strange dog; sometimes they're not friendly.
d. You shouldn't pat a strange dog: sometimes, their not, friendly.