Answer: Option B
Explanation: In simple words, chronemics refers to the relevance of time in respect of non verbal communication. It is based on he concept that the time management of an individual depicts a number of points of his or her personality. For example - an employee who is always late for office will be considered as irresponsible.
In the given case, Raul is having problem with adjusting to the pace of American life. He gets usually late for his classes and other places. Thus, these instances communicate that he is having trouble with adjustments.
Hence the correct option is B.