Passage: "Volunteering in community programs offers benefits beyond helping others. Studies of volunteers commonly report a stronger sense of purpose and wider social networks. For young professionals, volunteering can also build skills such as leadership, planning and public speaking. Still, organisers warn that volunteers should not take on more than they can handle, since burnout helps no one." What warning do organisers give?
Correct answer: C. Volunteers should not take on more than they can handle, since burnout helps no one
The final sentence, introduced by "Still", warns that volunteers "should not take on more than they can handle, since burnout helps no one". "Still" marks this as a qualification of the benefits.