The first thing I did was open the box and spread out all the parts. Next, I read the first pages of the manual to figure out how to set up my telescope. My brother then helped me screw the scope onto the tripod. He also helped me adjust it so it was aligned properly. Finally, all I could do was wait for the sun to go down. I was so excited to get my first close-up views of the moon and Jupiter! 6

Which is the best introductory sentence to add to the paragraph above?

A.

With a decent telescope, even the rings of the planet Saturn can be seen.

B.

Astronomy is the study of the stars, planets, and other space objects.

C.

The brand-new telescope I ordered finally arrived in the mail today.

D.

Just after sundown, you can often see a satellite or two pass overhead.