A company tracks its monthly revenue data for product Y across five consecutive months as follows: Month 1: $180$, Month 2: $220$, Month 3: $215$, Month 4: $190$, Month 5: $240$ (all values in million USD). What is the average revenue (in million USD) of product Y?

1. A
   $210$
2. B
   $209$
3. C
   $211.2$
4. D
   $212.5$