$\int {{{\sin {{5x} \over 2}} \over {\sin {x \over 2}}}dx} $ is equal to (where c is a constant of integration)

Question

$\int {{{\sin {{5x} \over 2}} \over {\sin {x \over 2}}}dx} $ is equal to
(where c is a constant of integration)

2x + sinx + 2sin2x + c

x + 2sinx + sin2x + c

x + 2sinx + 2sin2x + c

2x + sinx + sin2x + c

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