Final answer:
The exercise in question is the 1/2 kneeling alt press w/ OH Athlete, which is a type of shoulder press done in a half-kneeling position to strengthen shoulders and core with alternating overhead presses.
Step-by-step explanation:
The exercise mentioned is 1/2 kneeling alt press w/ OH Athlete, which is a variation of a shoulder press that focuses on the upper body and core stability. This exercise is performed in a half-kneeling position, and 'alt' indicates that the exercise involves alternating arms while pressing a weight overhead — 'OH' stands for overhead. Because the exercise involves pressing weight overhead while in a half-kneeling stance, the correct answer is d. 1/2 kneeling alt press w/ OH Athlete. This exercise is beneficial for building shoulder strength and stability while engaging the core muscles due to the unilateral (alternating) nature of the press and the half-kneeling position.