Final answer:
The current age span for services under IDEA in Michigan is from birth to age 26 which encompasses a range not exactly covered by any of the provided answer choices.
Step-by-step explanation:
The current age span for services under the Individuals with Disabilities Education Act (IDEA) for the state of Michigan covers children and students from birth up to the age of 26. This encompasses several age groups mentioned, specifically, children ages 0 to 2.5, children ages 2.5 to 6, children ages 6-13, children ages 13-20, and also young adults up to age 26.
Since the state of Michigan provides education and related services under IDEA beyond the typical age cap of 21, which is common in many states, the best answer to the question would be to select the bracket that extends beyond the age of 21. Therefore, none of the options a) 3 to 5 years, b) 6 to 21 years, c) 22 to 30 years, or d) 31 to 40 years provided in the question correctly states the full extent of the age span for services under IDEA for Michigan.