The process of making hotdogs involves six activities: grind, mix, stuff, cook, peel, and inspect. If the capacity of activity cook determines the process capacity, which of the following statements are true?

(a)Activity cook is a bottleneck activity.

(b)The activity time of all the other five activities is shorter than activity "cook".

(c)Cycle time of the process of making hotdogs is equal=1/capacity of activity cook.

(d)Increasing the capacity of activity grind can increase the capacity of the process of making hotdog