Your uncle has $$840,000$ and wants to retire. He expects to live for another $30$ years, and he also expects to earn $10\%$ on his invested funds. How much could he withdraw at the beginning of each of the next $30$ years and end up with zero in the account?

a$.$ $$70,099\mathrm{.}50$

b$.$ $$81,005\mathrm{.}97$

c$.$ $$70,800\mathrm{.}50$

d$.$ $$75,378\mathrm{.}61$