Answer:
A). How
Explanation:
'Wh' words are characterized as the words that are employed to ask questions, either direct or indirect. Different words like why, when, where, what, who, whose, which, whom, how. Each word functions to ask for a detail which could be about the reason, manner, length, distance, time, Choice, people, etc.
The given statistics answer the question 'how' which tells the manner in which the 'roller coaster reaches' i.e. 'with a speed of almost 150 miles per hour' and the 'how'(the way) thrill-seekers are required to be prepared('wear goggles'). Thus, option A is the correct answer.