Identify the one true statement about bid$/$ask spreads:

$($a$)$ The terms $$bid$$ and $$ask$$ are from the perspective of the bank, i$.$e$.,$ the bank bids an amount of home currency for one unit of foreign currency and the bank asks an amount of home currency for one unit of foreign currency.

$($b$)$ The bid$-$ask spread decreases in the time$-$to$-$maturity of a forward contract, i$.$e$.,$ the longer the time$-$to$-$delivery the lower the bid$-$ask spread.

$($c$)$ As the customer of a bank, you always transact at the less favourable rate, i$.$e$.,$ you buy at the bid rate and you sell at the ask rate.

$($d$)$ The bid$-$ask spread increases in the liquidity of the currency that you transact in$,$ i$.$e$.,$ the more liquid a foreign currency the higher the bid$-$ask spread.

$($e$)$ None of the above