Final answer:
The tag on a synthetic web sling should include the manufacturer's name, rated capacities, material type, and date of manufacture. The date of manufacture is a crucial detail required for safe operation, making it the correct answer.
Step-by-step explanation:
The tag on a synthetic web sling is crucial for ensuring safe operation and maintenance. According to safety guidelines and standards, the tag should contain specific information that assists in the proper usage and tracking of the web sling. The required information typically includes the manufacturer's name or trademark, the rated capacities for the different types of hitches (e.g., vertical, choker, basket), the type of material, and the date of manufacture.
Alternatives such as the manufacturer's address, serial number, or the user's signature might be included, but the essential details are those that relate directly to the sling's identification and capacity. Hence, the correct answer to the student's question would be C. Date of manufacture, as it is one of the key pieces of information necessary for the safe and effective use of the web sling. This ensures that users can determine the sling's age and evaluate if it's within its safe service lifespan.