Answer:ss
Broadbent's filter
Step-by-step explanation:
Broadbent's filter:-
Broadbent proposed that the physical characteristics of the messages which are used to select one input out of the many and only working on it and processing through it.
According to it, the meaning of all the messages is not taken into the account by the filter and the processing of only that input is carried which is selected by the the filter and the rest are ignored or restricted.
Thus, according to the question. Nick doing both jobs well as the filter only is involved in texting and ignoring the mother's lectures. Thus, Nick is displaying Broadbent's filter.