Final answer:
For transportation, cold time temperature control for safety food should be maintained between 0°C to 4°C to slow microbial growth and ensure food safety.
Step-by-step explanation:
The correct temperature for transporting cold time temperature control for safety food is 0°C to 4°C. This temperature range inhibits microbial metabolism, significantly slowing the growth of microorganisms and helping preserve refrigerated products such as foods. According to health guidelines, keeping food at or below 4°C (40°F) is essential to prevent the growth of bacteria and ensure food safety.
Foods that remain within the temperature danger zone of 4°C to 60°C (40°F to 140°F) for more than two hours may become unsafe to consume due to rapid bacterial multiplication. Therefore, for cold time temperature control for safety, food should be transported at temperatures between 0°C to 4°C, with option 'b' being the correct answer.