For centuries, people have dreamed of leaving the Earth and traveling through space to visit the moon and explore other planets and stars. During the past thirty years, some of these dreams have become realities. Spacecraft have orbited the Earth and sent back data to ground-based scientists. They have traveled to other planets and transmitted images and information that have helped to expand our knowledge of the solar system. People have gone into space to orbit the Earth and even to visit the moon.
What word in this paragraph helps you to know the author’s attitude towards space travel?
a.
dreamed
c.
traveling
b.
helped
d.
a and b

Please select the best answer from the choices provided

A
B
C
D

helped

Explanation:

"They have traveled to other planets and transmitted images and information that have helped to expand our knowledge of the solar system."

This sentence implies that the author views space travel as helpful to society.

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."