The table below shows quarterly sales data over four years. Using the average demand as the base, what is the seasonal index for the third quarter.

Note: Pick the answer that is closest to the correct number.

Year

Quarter $1234$

$115261724$

$217292024$

$315241322$

$425302330$

Multiple Choice

$0\mathrm{.}99$

$1\mathrm{.}20$

$0\mathrm{.}92$

$0\mathrm{.}84$