Sal has access to only $$50000$ to found his online business. He wants to spend just $$5000$ on marketing, building his website, and social media for the first month. He has a choice of either starting an online vintage clothing store or an online antique artifacts store. To make his decision, he needs to find out how much exporting business is needed to support each type of store. Sal decides to buy the $2022$ and $2021$ records of relevant sales made from auctions, as well as the North American, European, and African quarterly reports on exports and imports. These data cost him $$350.$ Why does Sal choose to pursue secondary data collection in this instance? Choose the BEST answer.

$$ a$.$ He needs to save time and$/$or money.

b$.$ He has enough internal sources.

c$.$ He needs information collected for the first time.

d$.$ He needs to piggyback to achieve his goal.