Please help me out with this question and some explanation

24. A chef is trying to figure out the optimum way to cook a turkey so it doesn't dry out. He uses three temperature variations (375.C, 400.C, 425.C), four different cooking times (1 hour, 1.5 hours, 2 hours or 2.5 hours), as well as two different weights of turkeys (10 and 20 pounds). Four turkeys will be cooked at each combination of factor levels. How many treatments are there in this experiment? (A) 3 (B) 9 (C) 24 (D) 30 (E) 96 25. A golfer conducts a study to examine the effect of brand of golf club (Callaway, Mizuno or TaylorMade) and brand of golf ball (Titleist, Nike or Wilson) on his shooting distance. For each shot the golfer randomly chooses which combination of factor levels to use. He will take five shots using each of the treatments. How many shots will the golfer take in total? (A) 60 (B) 30 (C) 90 (D) 9 (E) 45 26. Drugs are often used for reducing the blood pressure of hypertensive patients (those with high blood pressure). An experiment was run to investigate the effect of Drug (A or B) ! and Dose Level (Low or High) on the reduction in blood pressure. The experiment was conducted separately for the 36 patients who had mild hypertension and the 24 patients who had severe hypertension as the researcher suspected that results may differ for the two groups. For this design, there are: (A) 3 factors and 1 blocking variable. (B) 4 factors and 1 blocking variable. (C) 4 factors and 2 blocking variables. (D) 2 factors and 1 blocking variable. (E) 3 factors and no blocking variables