Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Sport and sport events provide a significant source of volunteering opportunities for a wide range of individuals. (12) __________ organizers of major sport events tend to target the youth market to source volunteers due to the apparent high level of interest in sport by this group, not only in terms of young people who watch a particular sport, but also those (13) __________ participate in it. It is therefore suggested that sport may act as a kind of 'nursery' for volunteering and that the experiences (14) __________ to young people in sport may be critical for their future volunteer involvement, not only in sport but the broader society. By developing an interest in volunteering as a young person, it is hoped that these people will continue to volunteer as they become adults. One of the most common approaches by many event organizers is to place an advertisement in the local media which invites readers to contact the organization. (15) _______, it is possible to 'adopt a more formally structured recruitment programme through schools and universities. The (16) ________ of this approach is to establish a relationship between the governing body of a particular sport and young people from an early age, in the hope that young people who are either spectators or participants in the sport continue from childhood to adulthood. 

(Adapted from https://www.eltexampreparation.com/sites/default/files/IELTS)