Final answer:
The true statement regarding signing "he/she" in ASL is that an index handshape is used, reflecting the singular number '1' handshape in ASL. This sign is created in the neutral space in front of the signer's body. There is also growing acceptance of gender-neutral pronouns like "they/them" in society.
Step-by-step explanation:
The student's question concerns the correct way to sign "he/she" in American Sign Language (ASL). The true statement is option 4): It will use an index handshape. When signing "he" or "she," the handshape used is indeed the index finger, or the number '1' handshape in ASL. The sign is typically produced in the neutral space in front of the signer's body, usually near the shoulder area for "he" and lower down for "she" to represent the traditional positions of men and women in older society (hence statement 1) could also be considered accurate in practical use). However, in the context of handshape choice, option 4 is directly on point. It's important for the signer to use a clear index finger handshape to differentiate between personal pronouns and to maintain ease of communication in ASL.
Furthermore, recognizing and respecting people's pronoun preferences is a growing aspect of social etiquette. This not only encompasses the traditional "he/him" and "she/her," but also includes gender-neutral options like "they/them," reflecting societal shifts towards more inclusive language use.