To determine the minimum hot-holding temperature required for pasta with Alfredo sauce, we need to identify the correct option from the provided choices. According to safe food handling guidelines, foods must be held at a temperature that prevents the growth of harmful bacteria.
Let's evaluate the options to find the minimum hot-holding temperature:
a. [tex]$\mathbf{110^{\circ} F \left(43^{\circ} C \right)}$[/tex]: This temperature is too low. Bacteria can grow rapidly at this temperature, making it unsafe for holding food for an extended period.
b. [tex]$\mathbf{135^{\circ} F \left(57^{\circ} C \right)}$[/tex]: This temperature is commonly recommended by food safety experts and regulatory agencies for hot-holding. At this temperature, the growth of harmful bacteria is significantly slowed down, making it a safe minimum for holding food like pasta with Alfredo sauce.
c. [tex]$\mathbf{160^{\circ} F \left(71^{\circ} C \right)}$[/tex]: While this temperature would also prevent bacterial growth, it is higher than necessary for the minimum hot-holding requirement.
d. [tex]$\mathbf{185^{\circ} F \left(85^{\circ} C \right)}$[/tex]: Similarly, this temperature is well above what is required for safe hot-holding. It would ensure bacteria are not growing, but it's more than what is needed and could contribute to overcooking or drying out the food.
Based on food safety guidelines, the minimum hot-holding temperature required for pasta with Alfredo sauce is:
[tex]\[
\boxed{135^{\circ} F \left(57^{\circ} C \right)}
\][/tex]
Thus, the correct answer is option (b) 135°F (57°C).
