You are given a mathematical question described with an open-ended vocabulary. Questions in this task involve real-world situations, describing a mathematical problem. You are also given 4 or 5 answer options (associated with "A", "B", "C", "D", "E"). Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. LaTeX mathematical format (the standard way to express mathematical expressions in the typesetting software known as LaTeX) is used to express equations. Each question is solvable with high school math knowledge. Give only one answer for each question.

Q: If \(p\) gallons of 10 percent antifreeze solution is added to \(q\) gallons of 20 percent antifreeze solution, what is the percent antifreeze of the resulting solution in terms of \(p\) and \(q\)?
(A)\(\frac { p + q } { 2 } \) (B)\(\frac { 10p + 20q } { 30 } \) (C)\(\frac { 10p + 20q } { p + q } \) (D)\(\frac { 10p + 20q } { 100 } \) (E)\(\frac { 100p + 200q } { p + q } \)

A: C
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Q: In a display consisting of one row of coins, there are an equal number of silver and gold coins. Which of the following must be true?
(A)The first coin and the last coin are different types. (B)There are two adjacent gold coins in a row. (C)There are two adjacent silver coins in a row. (D)If there are two adjacent silver coins, there are also two adjacent gold coins. (E)If the last two coins are gold, there are at least two adjacent silver coins.

A: E
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Q: A gardener plants flowers in the following order: carnations, daffodils, larkspurs, tiger lilies, and zinnias. If the gardener planted 47 flowers, what kind of flower did he plant last?
(A)Carnation (B)Daffodil (C)Larkspur (D)Tiger lily (E)Zinnia

A:
B
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