Mark against the correct answer in each of the following:

Question:

Mark $(\sqrt{)}$ against the correct answer in each of the following:

$\int e^{x} \sec x(1+\tan x) d x=?$

A. $e^{x}(1+\tan x)+C$

B. $e^{x} \sec x+C$

C. $e^{x} \tan x+C$

D. none of these

Solution:

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