You've asked an unclear question, the subject here is T.
Answer:
The benefits are taxable to T.
Step-by-step explanation:
Note that, a disability income insurance policy provides a specific monthly benefits to insureds who are disabled as a result of injury or illness (disability).
Remember, also that T's employer had paid the premiums, and according to federal law if your an employer paid the disability insurance premiums, then the disability income is taxable to the employee (in this case T).