Final answer:
The best sentence that ties back to the main idea of the importance of volunteering in gaining skills and work experience is the one suggesting that students volunteer to improve their resumes. Specificity in job titles and responsibilities when listing volunteer work enhances a resume's impact, as does including a variety of experiences.
Step-by-step explanation:
The sentence that best connects back to the main idea of the paragraph, which is that volunteering can lead to skill development and work experience, is "Students looking to improve their resumes should consider volunteering." This concluding sentence helps to summarize the earlier points made in the paragraph by reinforcing the view held by employers and the benefits reported by employees, thus drawing attention to the utility of volunteering in enhancing a job seeker's resume.
When detailing your experiences, whether on a resume or in a concept such as answering the question, it's important to be specific and use job titles that reflect your responsibilities. Phrasing like "developed systems of cooperative leadership among youth in an environmental awareness program" is more impactful than simply stating "worked as a camp counselor." Such diction effectively communicates the nature of your experience and emphasizes transferable skills. Including a mix of work experience, internships, and volunteer work in related fields can be very appealing to potential employers.