Question: 2013 Fall Midterm - 2
You are given 5 books and 7 bookshelves. How many ways are there to place these books on the shelves? (The order on the shelves matters.)
(a)
$\frac{11!}{6!}$
(b)
$\frac{12!}{7!}$
(c)
${7}\choose{5}$
(d)
$\frac{11!}{7!}$