Your answer is c.
<span>A contributor’s credentials show that he or she is likely to provide reliable information on a certain subject.
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Answer:
bar graph is the answer according to statistics
I guess formal and informal refer to two types of essay - you can write a formal essay where you avoid conversational language and such and where you need to be very professional, or you can write informally where you don't have to think about such things, it is very casual.
Answer:
it means the capital or chief city of a country or region.
Explanation:
