Answer:
The CPI is 178 .
Option (c) is correct .
Step-by-step explanation:
Formula
[tex]CPI = \frac{(Current\ price\ of\ pair\ of\ jeans)\times 100}{Old\ price\ of\ pair\ of\ jeans}[/tex]
As given in the question
In 1983, a pair of jeans cost $66.35.
If a pair of jeans costs $118.10 today .
Put all the values in the formula
[tex]CPI = \frac{118.10\times 100}{66.35}[/tex]
[tex]CPI = \frac{11810}{66.35}[/tex]
CPI = 178 (Approx)
Therefore the CPI is 178 .
Option (c) is correct .