Given the following data,

Month Data

$1,77$

$281$

$3,87$

$4,93$

$5,84$

Compute the $3-$period moving average forecast for month $6.($It is equal to the $3$ period moving average in month $5.)$ The potential answers are:

A: $88$

B: $103$

C: $109$

D: $111$

E: $68$

$2.$ Compute the $2-$period moving average forecast for month $3.$ The potential answers are:

A: $99$

B: $111\mathrm{.}5$

C: $70\mathrm{.}5$

D: $79$

E; $71\mathrm{.}5$

Compute the $2-$period moving average forecast for all possible months. Then compute MAD in month $5$ for $2-$period moving average. The potential answers are:

$A$:$3\mathrm{.}7$

B: $5\mathrm{.}3$

C: $6\mathrm{.}2$

D: $7\mathrm{.}7$

E: $10\mathrm{.}2$

Compute the Tracking$-$Signal in month $5$ for $2-$period moving average.

The potential answers are:

$A$:$2\mathrm{.}5$

B: $0\mathrm{.}6$

C: $1\mathrm{.}5$

D: $1\mathrm{.}4$

E: $4$