Given this address $191\mathrm{.}6\mathrm{.}39\mathrm{.}119$:

a$.$ What class address is this?

b$.$ How can you tell that it is this class?

c$.$ How many bytes are reserved for the network address?

d$.$ What is the full network address?

e$.$ How many bytes are reserved for the host portion of the address?

f$.$ What is the host portion of the address $($do not include the network part$)$