Three charges are on a line. A positive charge is on the far left labeled q₁ = +6 coulombs. The second charge is 2 m away and is labeled q₂ = -4 coulombs. The third charge is 1 m away and is labeled q₃ = +3 coulombs. What is the electrical force between q₁ and q₂? Recall that k = 8.99 × 10⁹ N·m²/C².
a. 4.3 × 10¹⁰ N
b. 3.5 × 10¹⁰ N
c. -5.4 × 10¹⁰ N
d. -5.8 × 10¹⁰ N