Answer:
- after using numerous instruments to measure weather conditions Hackness is sure that dense fog is coming.
Step-by-step explanation:
As per the excerpt provided, the first option i.e. 'after...coming' most adequately narrates that how the setting(context and circumstances) affects the strengthened belief of Hackness that he could rightly conclude the upcoming weather condition in that specific region. The descriptions display that he possessed specific instruments that could measure sunlight, atmospheric weight, the pressure of the winds, etc. through which he was able to deduce aptly that London might face a dense fog situation. These equipments gave him the desired confidence to estimate actual data regarding the weather condition and make justified conclusions. Thus, the first option is the correct answer.