________ communication strategies may include the use of picture books and computer assisted devices that help people with expressive difficulties overcome the frustration of being unable to communicate their thoughts, feelings, and desire to other people.a. Componential
b. Augmentative
c. Adjunctive
d. Prospective

Augmentative communication strategies has been developed for individuals who faces problem in expressive communication. They can face problem in speaking, writing, reading and comprehending language. The technique has uses additional communication device to reinforce communication ability of such person.

There are mainly two type augmentative communication strategies

Unaided augmentative c: Strategies in which the external props are not needed. It means that only techniques are developed in which body parts are sufficient to modify the communication
Aided augmentative: In this strategy external things are also used which assist them in communication. It can be technological item such as tablet, phone, speech device etc., it can also be traditional communication agent like books, , pictures, paper , pen etc.

In the problem statement external aid is used to help them in communication. Hence it is augmentative communication strategies. To be more precise it aided augmentative communication strategies.