Final answer:
The correct answer is (a) Hotline, which is a 24/7 telephone service providing crisis intervention and support by paraprofessional counselors.
Step-by-step explanation:
A 24-hour-a-day telephone service manned by paraprofessional counselors is called a hotline. This service, which often provides crisis intervention, support, and referrals to those in need, is an immediate resource for individuals seeking help. Calling a hotline can offer emotional support during times of distress and can be critical for those facing emergencies or mental health challenges. Other options, such as support groups, helplines, and lifelines, can also provide assistance, but they serve different functions or may not operate 24/7.
A support group is a gathering of individuals sharing common experiences and providing mutual support. A helpline can offer advice and support but may not be available round-the-clock, whereas a lifeline could refer to an essential support system that may not necessarily involve a telephone service.