Arrange the following parabolas in increasing order of the length of their latus rectum.
• [A.] \(y^2 = 8x\)
• [B.] \(4x^2 + y = 0\)
• [C.] \(y^2 - 4y - 3x + 1 = 0\)
• [D.] \(y^2 - 4y + 4x = 0\)
Choose the correct answer from the options given below: