Choose which one of the following sentences can be correctly...

Linguistic and psychological theories provide the foundations for this approach.

Only vocabulary and sentences of a very ordinary and commonplace nature are taught.

There is a prevalence of surface forms and of the rote practice of scientifically produced language patterns.

Concrete vocabulary is taught through demonstration, objects, and pictures, while abstract vocabulary is taught by association of ideas.

Pronunciation plays an absolutely negligible role in the teaching/learning process.