40 persons like apple. 7 like orange and mango dislike apple. 10 like mango and apple and dislike orange. 4 like all. How many people like apple?	Choose the correct choice from the following options.
A) 47 B) 46 C) 54 D) 58 E) 62
orange+mango-apple=7   mango+apple-orange=10   apple=40   orange+mango+apple=4   40+10+4-7= 
<gadget id="calculator">40+10+4-7</gadget>
<output>47</output>
47 like apple   47NSWER:47
<result>A</result>
40 persons like apple. 7 like orange and mango dislike apple. 10 like mango and apple and dislike orange. 4 like all. How many people like apple?