A retail company's gross profit margin was 40% for the year 2018 and 33% for the year 2019. Which of the following could explain the change?

(1) The company sold their goods to customers at a higher price in 2019 than in 2018.

(2) The company sold their goods to customers at a lower price in 2019 than in 2018.

(3) The company bought the goods for resale from their suppliers at a higher price in 2019 than in 2018.

(4) The company bought the goods for resale from their suppliers at a lower price in 2019 than in 2018.

Group of answer choices

(1) and (2)

(1) and (4)

(2) and (3)

(2) and (4)

Provide your answers within 45 minutes maximum please!!