Saline, Rather Than Fresh Water, Is Used to Prepare Smears

Saline, rather than fresh water, is used to prepare smears of bacteria for Gram stain because

A) saline has a lower osmotic pressure than the organism and the organism cell swells.
B) saline has a high solute concentration causing water to flow out of the cell and it shrinks.
C) fresh water rushes into the cell due to its low solute concentration and the cell swells.
D) fresh water affects the Gram stain reaction and causes inaccurate results.