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 3 books from the list, including at most 2 novels. How many selections of 3 books satisfy the requirements? Pick one:	A) 40	B) 115	C) 130	D) 144	E) 195
40ns: B   Solution: Selection requires at most 2 novels, means=   0N4P + 1N3P + 2N2P   6c0*4c3+ 6c1*4c2   = 4+ 36= 
<gadget id="calculator">4+ 36</gadget>
<output>40</output>
40   40ns: 40
<result>A</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 3 books from the list, including at most 2 novels. How many selections of 3 books satisfy the requirements?