Answer:
с. closed-captioning systems
Step-by-step explanation:
In this scenario, your friend Marissa is writing a paper about the evolution of medical technology that assists the deaf-blind community. The following are the likely tools that she would discuss in her paper;
I. Tactile signing: it is a common method of communication which typically involves the use of touch by people with a hearing loss and blindness (deaf-blindness).
II. Braille: this is a system of communication invented by Louis Braille and it involves the use of dots to represent a combination of letters to aid people with sight impairment.
III. Speechreading: it involves the process of identifying and understanding the meaning of a speech by visually reading the movement of the speaker's tongue, face and lips.