Ruben has a new puppy named paddington and wants to feed him the best possible food. hedecides on an experiment where he will feed paddington the very best canned food plus a dietarysupplement of vitamins recommended by a veterinarian. which of the following best describesruben's project? a) this is an example of an excellent, controlled experiment as it is written. b) ruben needs to take careful measurements of paddington's weight and height at least once aweek for it to be a good experiment. c) this is not an experiment-there are no controls or replicates. d) ruben needs to control for the amount of exercise, sunshine, water, and care that paddingtongets each week, so that they are equal from week to week. e) ruben needs to use his mother's 6-year-old chocolate sharpei named scout to feed astandard diet so he can compare paddington to a control dog.