Final answer:
The best stain to visualize reticulocytes, which are immature red blood cells, is Wright's Stain (B), due to its ability to highlight the ribosomal RNA in reticulocytes and provide clear detail and contrast.
Step-by-step explanation:
The best stain to see reticulocytes is B) Wright's Stain. A Wright's stain, which is a differential stain, is commonly used in hematology to differentiate and identify the components of blood cells. Reticulocytes are immature red blood cells and when stained with Wright's stain, they show a reticulated network of ribosomal RNA, distinguishing them from mature red blood cells. Whereas Gram stain is designed for bacteria, Wright's stain provides the necessary detail to observe features within blood cells, including reticulocytes.
Giemsa Stain can also be used for blood smear staining and can potentially demonstrate the presence of reticulocytes, but Wright's Stain is typically preferred for its better contrast and detail. Diff-Quik Stain, being a rapid variant of the Wright-Giemsa stain, is also used for reticulocytes, though it is less commonly the primary choice.