Answer:
B. It's difficult to predict the effects of new policies and procedures.
Step-by-step explanation:
Why this is correct:
- It's = it is, this rules out C because it would not make sense if the sentence didn't start with it is.
- affects vs. effects. affects is a verb meaning to impact, effect is a noun meaning the result of a change.
- the plural word of policy is policies, not policys.