Final answer:
The Lithotomy position involves a woman's feet placed in padded stirrups for vaginal examinations or procedures, making option (B) the correct answer.
Step-by-step explanation:
The position that involves placing a woman's feet in padded stirrups for the purpose of examining the vagina is known as the Lithotomy position. This position is commonly used during gynecological examinations and certain medical procedures. None of the options provided, such as the person standing facing the observer (b) or the person being supine with limbs touching sides (c), accurately describe the Lithotomy position. Therefore, the correct answer to the question is (B) Lithotomy position.