Answer:
B and C are correct (pretty sure :)
Explanation:
A is incorrect because -1/3 is not less than -2/3 since -2/3 is closer to -1 and -1/3 is closer to 0 (greater amount).
B is correct because -2/3 is close to -1, which is less than 0.
C is correct because -2/3 is closer to -1 than -1/3, which makes it less on the number scale.