Question

which statement best describes the articles sense of closure?
source 2: not your typical mountain biking trail
mountain biking is no longer limited to daring downhill racers. across the country, new trail systems invite all riders to test their endurance while experiencing nature in bold, creative ways. the iron ridge loop in colorado is one of the most talked-about examples. built by the american blakes association, the 25-mile route twists through pine forests, across meadows, and over red-rock ridges.
trail designer lula ortega says the goal was to create a ride that challenges skill and stamina without feeling dangerous. the path includes optional routes for beginners, steep climbs for experts, and overlooks where everyone can catch their breath.
local rider jenna hall, age 16, says the trail changed how she views mountain biking. its tough, but the views are unreal. you feel like youre flying. her family now spends most weekends on the iron ridge loop, exploring new sections each time.
supporters believe trails like iron ridge show how communities can blend recreation, conservation, and tourism. well - designed mountain - biking routes attract visitors, boost local economies, and inspire people to respect the environment — all while delivering the thrill of outdoor adventure.
a. it ends suddenly with a question
b. it leaves readers uncertain about the trails location
c. it repeats the introduction without adding new insight
d. it concludes by summarizing how biking supports recreation, economy, and conservation

Explanation:

The last paragraph (Supporters believe... outdoor adventure) summarizes how trails like Iron Ridge blend recreation, conservation, and tourism. It mentions that well - designed mountain - biking routes attract visitors (economy), inspire respect for the environment (conservation), and provide outdoor adventure (recreation). Option A is incorrect as there is no sudden question at the end. Option B is wrong because the location (Colorado) is already given earlier. Option C is incorrect as the conclusion adds new insights about the benefits (economy, conservation, recreation) not just a repetition of the introduction.

Answer:

D. It concludes by summarizing how biking supports recreation, economy and conservation.