In an informative/ explanatory article about vacation planning which of these concepts would be used to explain something to the reader?
a- famous beaches
b- booking a hotel room
c- effective natural sunscreens
d- travel agent recommendations

In an informative/ explanatory article about vacation planning mostly the reader prefers booking a hotel room.

B- booking a hotel room

Explanation:

This is about how to do something, that is, it explains to the reader how to book a hotel room. It is straightforward, direct, while the other alternatives are informative rather than instructional. Being a reader generally prefer silent and calm location. While these places not only helps to read books but also to refresh your mind and soul in a peaceful condition.  

Perhaps the most compelling motivation why perusers want to peruse books is to pick up information. Books are a rich wellspring of data. Perusing books on differed subjects grants data and builds the profundity of the subject too. At whatever point you read a book, you get familiar with a bit of new data that generally would not have known.  

The motivation behind perusing is to interface the thoughts on the page to what you definitely know. On the off chance that you know nothing about a subject, at that point emptying expressions of content into your brain resembles emptying water into your hand. So if all these occur in a quiet and merry spot like booking rooms will be extremely joyful.

i think it's either 'to expose the corruption of the communists in russia', or 'to criticize animal brutality by communists in russia.'  

hope this ! : )

a is the indefinite article