The table above shows the amount and cost of two types of beverages. Based on the table, what is the ratio of the cost per gram of coffee beans to the cost per gram of tea leaves?
| Beverage | Amount | Cost |
|---|---|---|
| Coffee Beans | 200 grams | $12.00 |
| Tea Leaves | 150 grams | $7.50 |
4 : 5
5 : 6
6 : 5
5 : 4
