Answer:
B. shadowing
Step-by-step explanation:
Shadowing: The term shadowing refers to the phenomenon of phonetic imitation, in which participants are asked to listen and repeat the different isolated words. The shadowing techniques are widely used in the study of attention or cognitive testing in which participants or students repeat the word loudly whatever they hear formerly even in the presence of other stimuli in the surrounding.
In the question above, the process of shadowing is being illustrated.