Question

why is the temporary mount of the leaf epidermal peal pinkish red under the micro scope?

Answer 1

the temporary mount of the leaf epidermal peel which looked pinkish red under the microscope was 
1. stained in acetocarmine and mounted in glycerine 
2. stained in iodine and mounted in water 
3. stained in safranin and mounted in glycerine 
4. stained in methylene blue and mounted in water. 
pls answer with explanation.