Select the color of the Gram-positive cells and the Gram-negative cells after each step of the Gram stain process:
Step 1 (Crystal Violet):
Gram-positive cells: Purple
Gram-negative cells: Purple
Step 2 (Iodine):
Gram-positive cells: Purple
Gram-negative cells: Purple
Step 3 (Alcohol Decolorizer):
Gram-positive cells: Purple
Gram-negative cells: Colorless
Step 4 (Safranin):
Gram-positive cells: Purple
Gram-negative cells: Red
Options:
A) Purple, Purple, Colorless, Red
B) Purple, Purple, Colorless, Purple
C) Purple, Purple, Red, Purple
D) Purple, Purple, Red, Colorless