Choice A is the correct answer. Same coefficients.

1. Original: $3x + 4y = 12$ (Slope $-3/4$).
2. Option A: $3x + 4y = 7$ (Slope $-3/4$).
3. Result: Parallel.

💡 Strategic Tip: In Standard Form, keep $Ax+By$ the same to get a parallel line.

Choice B is incorrect because perpendicular. Choice C is incorrect because different slope. Choice D is incorrect because different slope.