Final answer:
Deaf-blindness refers to individuals who have both hearing and visual impairments. It does not mean complete deafness and blindness simultaneously, as some individuals may have some residual hearing or vision.
Step-by-step explanation:
Deaf-blindness refers to people who are completely blind and completely deaf. The statement is partially true. Deaf-blindness is a condition in which individuals have both hearing and visual impairments. It does not necessarily mean complete deafness and blindness simultaneously. Some individuals with deaf-blindness may have some residual hearing or vision.