Select the option that can be used as a one-word substitute for the given group of words.

Profitable, yielding financial gain

Lucrative

The word that can be used as a one-word substitute for "profitable, yielding financial gain" is lucrative.

• Ludicrous means absurd or ridiculous.
• Lucrative means profitable or yielding financial gain.
• Luddite means a person who opposes technological change.
• Lugger means a heavy boat used for transporting goods.

Lucrative is the most appropriate word for the given group of words because it specifically refers to something that is profitable or yields financial gain. It is derived from the Latin word lucrāre, meaning "to gain."