A reading list for a certain course consists of 10 books, of which 4 are poems and the rest are novels. Each student is required to read a selection of 4 books from the list, including at most 1 novels. How many selections of 4 books satisfy the requirements?  Select
A) 90	B) 115	C) 130	D) 144	E) 195
Ans: B   Solution: Selection requires at most 2 novels, means=   0N4P + 1N3P + 2N2P   6c0*4c4+ 6c1*4c3 + 6c2*4c2 +6c3*4c1   = 1+ 24 + 90+80= 
<gadget id="calculator">1+ 24 + 90+80</gadget>
<output>195</output>
195   Ans: 195
<result>E</result>
A reading list for a certain course consists of 10 books, of which 4 are poems and the rest are novels. Each student is required to read a selection of 4 books from the list, including at most 1 novels. How many selections of 4 books satisfy the requirements?