Which of the following statements would you classify as being correct:

$($i$)$ In cost$-$plus pricing overheads are always ignored in arriving at a price to be charged to customers

$($ii$)$ Market skimming might be used by a phone manufacturer launching a phone with new original features

$($iii$)$ Differential pricing might be used by a hotel

$($iv$)$ Target Pricing always ignores profit element