Final answer:
Physical fitness standards for enlistment vary by military branch and include criteria for push-ups, sit-ups, and the beep test. The numbers listed are options, but specific standards depend on age, gender, and branch, so it is vital to consult the respective military service for accurate information.
Step-by-step explanation:
The physical fitness standards for enlistment vary depending on the branch of the military one is seeking to join. However, generally speaking, applicants will need to meet certain physical fitness criteria as part of the enlistment process. These often include a specified number of push-ups, sit-ups, and a level to reach on the beep test, also known as the multi-stage fitness test. While the numbers (A) 15, (B) 20, (C) 25, and (D) 30 are given as options, the exact standards can differ by age, gender, and military branch. It's important to check the specific requirements of the military service you are interested in for the most accurate information. Generally, the aim is to demonstrate a level of physical capability that suggests the applicant can handle the physical demands of military training and service.