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

He requested the bank to give him more time as at present he was unable to pay his debts.

Bankrupt

The word that can be used as a one-word substitute for the underlined group of words "unable to pay his debts" is bankrupt.

• Destitute means having no money or possessions.
• Meticulous means very careful and precise.
• Reckless means taking unnecessary risks.
• Bankrupt means unable to pay one's debts.

The word bankrupt is the most appropriate because it specifically refers to someone who is unable to pay their debts. The other words do not have the same connotation of financial insolvency.