B i think and i hope this helps you
Answer:
There are some countries and regions that follow unusual time zones. Many of them are in increments of a half hour, different from the usual hour difference you normally see. People traveling to and from areas of the world that use unusual time zones may become confused or have trouble discerning the local time.
Explanation:
D) selecting random sample allows for a more representative sample in a survey.
Answer: It incorporated many diverse cultural groups
Explanation:
