Final answer:
Partial disability benefits are not referred to as 'at-work' benefits, are not usually 75% of the total disability benefit, and can be paid for longer than 6 months. Option d is incorrect option.
Step-by-step explanation:
Partial disability refers to the inability to perform one or more of the regular duties of an occupation. It is not typically referred to as 'at-work' benefits, as stated in option A. Option C is incorrect because partial disability payments are usually a percentage of the total disability benefit, not a fixed 75%.
Finally, option D is incorrect because partial disability benefits can be paid for a period longer than 6 months, depending on the individual's situation.