Final answer:
Deaf-Blind individuals need tactile communication and support as their primary form of assistance. Tactile communication methods, such as tactile sign language and Braille, are essential for their interaction with the world.
Step-by-step explanation:
Deaf-Blind (DB) individuals require specialized forms of communication and support to interact with their environment effectively. Considering the combination of hearing and visual impairment, tactile communication methods are crucial for their ability to receive and transmit information. Therefore, the correct answer is B. Tactile communication and support. This can include communication methods such as tactile sign language, Braille, and the use of technology designed to aid those with dual sensory loss. While options like auditory training, cochlear implants, and speech therapy may benefit some individuals who are deaf or hard of hearing, they are not typically the primary needs for someone who is both deaf and blind.