From experience, the owner of an ice-cream shop has found that 60% of all sales of ice-cream cone are for one-scoop cones, 30% are for two-scoop cones, and the remaining 10% are for three-scoop cones. Recently, the shop added frozen-yogurt cones to its menu. A random sample of 250 frozen yogurt-cone sales revealed the following distribution:Number of scoops Number of salesone 154two 84three 12The owner wishes to know whether the pattern of sales for frozen-yogurt cones differs from that of ice-cream cones. Which one of the following pairs of null and alternative hypotheses are appropriate for this test?A) H0: The distribution of the variable "number of scoops" is the same for frozen yogurt cones as it is for ice cream cones. B) Ha: The distribution of the variable "number of scoops" is different for frozen yogurt cones than it is for ice cream cones. H0: The observed counts for "number of scoops" are the same as the expected counts. C) Ha: At least one of the observed counts for "number of scoops" is different from the corresponding expected count. H0: Ice-cream cone sales and frozen-yogurt cone sales are independent. D) Ha: Ice-cream cone sales and frozen-yogurt cone sales are dependent.