Correct option is B
When you have a learner with visual impairment in your classroom, the appropriate instructional adaptation is to use various types of tactile materials. Tactile materials are tangible and can be explored through touch, allowing students with visual impairments to access information and learn effectively. These materials can include Braille texts, tactile graphics, raised maps, and other tactile resources that provide information through touch and tactile exploration.
Options (a), (c), and (d) are not suitable for a student with visual impairment. Focusing on visual presentations (option a) would not be accessible to the student. Standing far away while giving instructions (option c) does not aid the student's understanding, and giving printed materials to read alone (option d) is not helpful for someone with a visual impairment who may not be able to read standard print.