Please help me answer the treatment design & Randomization design for each:

A.The yields of three varieties of oats are to be compared.Four different levels of manure are usedand 6 farmershave agreed to participate in the experiment. Each will designate 3 farm fields for the experiment.

Treatment design:

Randomization design:

B.In a commercial setting, an experimentis designed to compare the cooking times for 2 different temperature levels and three different pizza dough types. Eight ovens were used and randomly chosen four of them were set to one temperature level and the remaining four ovens to the other. Three pizzas, each made fromone of the 3 dough types were cooked in each oven.

Treatment design:

Randomization design:

C.In an agricultural setting, you are applying randomly, one of two irrigation methods to 6 plots and all plots are similar in moisture, soil type, slope, fertility , etc. Each plot is then subdivided to 5 portions and 5 levels of nitrogen fertilizer is applied randomly to these portions.

Treatment design:

Randomization design: