Communication disorders refer

a. stuttering, pronunciation difficulties, and omitting or distorting sounds
b. difficulties in balance, manual dexterity, agility, and locomotion
c. disturbance in attention, consciousness, language, thought processes, visuospatial abilities, orientation, and memory
d. significant social communication impairments and restrictive and repetitive behavior, interests, or activities

Communication disorders refer to Stuttering, pronunciation difficulties, and omitting or distorting sounds  

Option A

Explanation:

Communication disorder is children are identified when the child faces trouble communicating with others. The child will face pronunciation difficulty, will not be able to put the right choice of word or sentence and stutter in between.

No proper development of the brain causes this kind of communication problems. These children avoid speaking to others or only communicate using monosyllables. This should be addressed immediately and they should be taken to a speech language pathologist.

To enhance the communication skill in a child a team effort is needed with the active participation of teachers, parents and speech therapist.  

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.