Question at position 1 Which ones of the following statements are correct? There is more than one correct statement.Individuals will take action if the action's marginal benefit is greater than its marginal cost.For an intervention to be Pareto Optimal, it must improve the social welfare and nobody can be worse off because of it.We cannot measure the amount of "health" one has. Instead, we look at several health outcomes to get a best "guess" at someone's health.In a free market and assuming no change in the demand, if the supply of a health product increases, so does the price (it increases).In a free market and assuming no change in the supply, if the demand for a health product increases, so does the price (it increases).多项选择题