i) Microwave cooking is a healthy method of cooking as little or no oil is required to cook the food.

Microwave cooking can indeed be considered a healthy method of cooking for several reasons:

1. Less Oil: As you mentioned, microwave cooking often requires little to no oil. This can significantly reduce the amount of fat and calories in the meals you prepare, contributing to a healthier diet.

2. Nutrient Retention: Microwaving can also help to preserve nutrients in your food. Some cooking methods, like boiling, can cause vegetables to lose some of their vitamins and minerals. But because microwaving cooks food quickly and without a lot of water, it can better preserve those nutrients.

3. Portion Control: Microwaves are great for reheating leftovers, which can make it easier to control portion sizes and avoid overeating.

4. Reduced Cooking Time: Microwaving reduces cooking time significantly. This can help to preserve nutrients that may be lost through longer cooking methods.

However, it's important to note that not all foods are suitable for microwave cooking. Some foods, like meats, may not cook evenly in a microwave, which could potentially lead to food safety issues. Also, some people may not like the texture of microwaved food, as it doesn't provide a crispy or browned surface like frying, grilling, or baking does.