Use Variation of Parameters to solve the differential equation.

y'' + y = tan x

Select one:

a. y = c₁cos x + c₂sin x - ln | sin x |

b. y = c₁cos x + c₂sin x - ln | cos x |

c. y = c₁cos x + c₂sin x - ln | sec x + tan x |

d. y = c₁cos x + c₂sin x + 2 sin x cos x - ln | sec x + tan x |

e. y = c₁cos x + c₂sin x + sin x cos x + sec x tan x