In a games hour 4 different types of players came to the ground? cricket 18, hockey 15, football 21, softball 15. In these 4 people play both cricket and hockey, 3people play both softball and football. 5 people play both cricket and football. How many people play only cricket?	Choose the most appropriate option:
A) 11 B) 9 C) 5 D) 3 E) 9
people play only cricket = total players in cricket- both cricket and football- both cricket and hockey.   people play only cricket = 18-4-5= 
<gadget id="calculator">18-4-5</gadget>
<output>9</output>
9   Answer is 9
<result>B</result>
In a games hour 4 different types of players came to the ground? cricket 18, hockey 15, football 21, softball 15. In these 4 people play both cricket and hockey, 3people play both softball and football. 5 people play both cricket and football. How many people play only cricket?