Which code would you use to find the value of the function f$?$

$f(x)=sin(x)+cos(x)+tan(x)atx=\frac{}{4}$

$$ a$.sin(p\frac{p}{4})+cos(\frac{}{4})+tan(\frac{}{4})$

b$.sin(45)+cos(45)+sin(45)$

c$.sin(45)+cos(45)+tan(45)$

d$.sind(45)+cosd(45)+tand(45)$