Which statement about purchasing by small service firms is false?

Which statement about purchasing by small service firms is false?

Small service companies often rely on e$-$commerce for purchases.

Purchases by small service firms are usually handled by a person with full$-$time responsibility for purchasing.

Purchases by small service firms can add up$,$ and these smaller firms thereby become an important target market.

Small service firms may need much more help in buying than large corporations.

Purchases by small service firms are often handled by whoever is in charge or their administrative assistant.