The table shows the amount of protein in two types of meat and the cost of each. Based on the table, what is the ratio of the cost per gram of protein in chicken breast to the cost per gram of protein in ground beef?
| Food | Protein | Cost |
|---|---|---|
| Chicken breast | 120 grams | $6.00 |
| Ground beef | 140 grams | $7.00 |
1 : 1
1 : 2
2 : 1
5 : 6
