16 . Which option is correct? Show work please

Question 16 Find the points of inflection and discuss the concavity of the function / () = sinxx +cosc on the interval (0, 2 It). O concave upward on | U. - 7: concave downward on | 7 74. 2 /7 : inflection point at |0. 3 concave downward on |0, 7 7 | ; concave upward on | 7 7. 2 7 : inflection point at |0. , 7 no inflection points. concave up on (0, 2 TT) no inflection points. concave down on (0, 2 7) none of the above