The upper quartile for the following distribution is given by the size of:

Size of Item	$1$	$2$	$3$	$4$	$5$	$6$	$7$
Frequency	$2$	$4$	$5$	$8$	$7$	$3$	$2$

• A
  $\left( \frac{31 + 1}{4} \right)^{th}$ item
• B
  $\left[ 2\left( \frac{31 + 1}{4} \right) \right]^{th}$ item
• C
  $\left[ 3\left( \frac{31 + 1}{4} \right) \right]^{th}$ item
• D
  $\left[ 4\left( \frac{31 + 1}{4} \right) \right]^{th}$ item