The attached condiments m contains information on sales of four products. Consider a regression of ketchup sales on a constant and the sales of the other three products. Using a 5% level of significance, the t statistics suggest O only the coefficients on mustard and onions are significantly different from zero. 0 only the intercept is significantly different from zero. O only the coefficient on mustard is significantly different from zero. O only the coefficient on onions is significantly different from zero. 0 only the coefficients on mustard and relish are significantly different from zero