(c) Organized sector
Ramesh receives benefits like health insurance, provident fund, and medical leave — these are features of the organised sector, where employment terms are regular and government rules are followed.
The key clue is the benefits mentioned (provident fund, health insurance, medical leave). The textbook clearly states that workers in the organised sector enjoy paid leave, provident fund, gratuity, and medical benefits. The type of industry (textile export) is irrelevant here — what matters is the employment conditions, which define organised vs. unorganised sector.