Examine the description of the PROMOTIONS table: (Exhibit) You want to display the unique promotion costs

Examine the description of the PROMOTIONS table:

You want to display the unique promotion costs in each promotion category.
Which two queries can be used? (Choose two.)

A. SELECT promo_cost, promo_category FROM promotions ORDER BY 1;

B. SELECT promo_category, DISTINCT promo_cost FROM promotions ORDER BY 2;

C. SELECT DISTINCT promo_cost || ‘ in ‘ || DISTINCT promo_category FROM promotions ORDER BY 1;

D. SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;

E. SELECT DISTINCT promo_category || ‘ has ‘ || promo_cost AS COSTS FROM promotions ORDER BY 1;

Correct Answer: B,D