$($Table: Production Possibilities Schedule$)$ In the table, a combination of $4,500$ iPads and $2,000$ HDTVs

$\backslash$table$[[$iPads$,$HDTVs$],[5,000,0],[4\mathrm{.}500,1\mathrm{.}000],[3\mathrm{.}500,2\mathrm{.}000],[2\mathrm{.}000,3\mathrm{.}000],[0,4,000]]$

a$)$ is accomplished at full employment.

b$)$ is a point inside of the production possibilities frontier.

C$)$ is a point on the production possibilities frontier.

d$)$ is unattainable.