I'm not sure what the 879-06-03-00-00-con_files/i0040000.jpg stands for but I'll just solve the given choices and you can choose which is the correct one.
1 inch = 2.54 cm
a) 88.90 cm * 1inch / 2.54 cm = 35 inches → 35 inches = 88.90 cm . I THINK THIS IS THE CORRECT ANSWER TO YOUR QUESTION.