please answer B instead of A if you can't do both

4) Three stocks have share prices of $12, $75, and $30, and have total market values of $400 million, $350 million, and $150 million, respectively. A) If you were to construct a price-weighted index of the three stocks, what would be the index value? B) If you were to construct a value-weighted index of the three stocks, what would be the index value