Select the correct answer. Tony spent $100 on books to give away as prizes to his students. At the store, he bought 4 more books than planned, spending $5 per book Which equation can be used to find the number of books he originally wanted to buy x?A. [tex] \frac{x + 5}{100} = 4[/tex]B. [tex] \frac{100}{5x} = 4[/tex]C. [tex] \frac{4x}{100} = 5 [/tex]D. [tex] \frac{100}{x + 4} = 5[/tex]