Alberta Company sells electrical components. Refer to your work in the previous question. Assume that in the following year, Alberta's gross margin % increases slightly. Which of the following is a reasonable explanation for the increase. (There may be more than one correct answer.) Alberta paid less for the components than in the prior year due to a decrease in materials cost. Alberta increased the sales price from the prior year's price. Alberta paid more for the components than in the prior year due to an increase in materials cost. Alberta decreased the sales price from the prior year's price. Alberta's selling and administrative costs decreased from the prior year. Alberta sold more components than in the prior year.