None of the options is correct.
INTERMITTENT ACTIVITY means that you perform said activity at irregular intervals, in a sporadic way. On the contrary, the options mentioned require the subject to participate actively. For example, in order to develop a skill it is important to practice a lot. In the same way, if you focus on what you are hearing, you are paying attention which is the opposite to what an intermittent activity is.
The answer to this is option A! :)
Brainliest appreciated
