Answer:
A). Prevents from happening.
Explanation:
The word preclude implies the meaning 'to remove the possibility of' or 'exclude'. The sentence implies the use of the word 'preclude' as 'prevent from happening' as it states that Jariah is being prevented from having an 'active social life of leisure activities' due to the current requirement of music practice and homework. Thus, ongoing excessive loads of these work have 'made impossible' or 'prevented her from' indulging into leisure activities. Therefore, the correct answer is option A, i.e. 'prevents from happening'.