Which of the following is an exception to the $10\%$ early withdrawal penalty of a traditional IRA?

a$.$ Withdrawing up to $$30,000$ for first$-$time home$-$buying expenses

b$.$ Paying the costs of higher education, including tuition fees, books, and room and board for a dependent child

c$.$ The recipient has received $6$ weeks of unemployment compensation and must pay medical insurance premiums for dependents.

d$.$ Using the withdrawals for medical expenses up to $7\mathrm{.}5\%$ of their AGI, for persons younger than $59(1)/(2)$ years old