Question

which sentence uses correct parallel structure?
a. colorado is a state with a great deal of natural beauty, including mountain peaks, fast - moving rivers, and it also boasts some world - famous ski slopes.
b. the popularity of social media has changed the way people stay in touch, overturned traditional social networking, and influenced business practices.
c. throughout history, india has been a hub of civilization, it has been referenced frequently by far - removed cultures, and its an academic powerhouse.
d. the millennial generation faces one of the toughest job markets in american history, large amounts of student debt, and yet its the most educated.

Explanation:

Parallel structure requires matching grammatical forms in a list.

• Option A mixes noun phrases ("mountain peaks", "fast-moving rivers") with an independent clause ("it also boasts some world-famous ski slopes"), breaking parallelism.
• Option B uses three parallel verb phrases in the present perfect tense: "has changed...", "overturned...", "and influenced...", all describing effects of social media popularity, maintaining consistent structure.
• Option C uses independent clauses but shifts phrasing, lacking tight parallel grammatical structure.
• Option D mixes a noun phrase ("large amounts of student debt") and a clause ("yet it's the most educated") with the initial descriptive phrase, breaking parallelism.

Answer:

B. The popularity of social media has changed the way people stay in touch, overturned traditional social networking, and influenced business practices.