As an incentive for disabled workers to return to work as soon as possible, many DI policies offer a residual disability benefit, one that will pay the disabled a portion of his benefits if he is able to work part-time following a period of total disability. Which of the following conditions need to be met for this benefit to apply? 1. There has to be a minimum period of total disability under the contract, often six months, including the waiting . period. 2. There are minimum and maximum income requirements for an insured to qualify for residual benefits normally \20. 3. If the insured earns \60 of his pre-disability income, he will receive no benefit 4. If the insured only earns \20 or less of his pre-disability income, he will qualify for full benefits. 5. Earnings between \20 and \60 of pre-disability income will result in a pro-rata benefit, proportional to the percentage of income lost to disability. Select one: a. 1,2,3\\&4 b. \\( 1,28 \\times 4 \\) c. \\( 1,2,4 \\& 5 \\) d. \\( 2,3,4 \\& 5 \\)