1 : 2 (option B)
Step-by-step explanation:
Number that liked ham sandwiches = 6
Number that liked bologna = 2
Number that liked Turkey = 10
Total number that liked bologna and Turkey = 2 + 10 = 12
Ratio of ham to bologna and Turkey = Number that liked ham sandwiches : number that liked bologna and Turkey
Ratio of ham to bologna and Turkey = 6 : 12
Ratio of ham to bologna and Turkey = 1 : 2 (option B)