Emilia bought 4 pairs of socks and 3 DVDs. The DVDs were originally priced at $15 but were marked down by $7, and each pair of socks costs $2. Which expression shows the total amount Emilia will have to pay before tax?

4 × 15 – 7 + 3 × 2
4 × (15 – 7) + 3 × 2
3 × 15 – 7 + 4 × 2
3 × (15 – 7) + 4 × 2