The correct option is C spare
The word in the same context as the italicized words in both the sentences is option A 'spare'. Spare means extra or supplementary. It also means lean or thin. So, it can be used in both the sentences. Sentence I means that Priya spends her spare time reading novels. Sentence II means Kamal has thin body to squeeze into small place. Option B 'relaxed' means at ease or free from tension. Option C 'free' means liberate or not limited. Option D 'thin' means slim and lean body. Option E 'disjointed' means disconnected or mixed up. Thus, these options B, C, D and E do not fit in both the sentences together. So, the best fit is option A 'spare'.