Counterfeit coins erode trust in currency

Steps:

• Identify issue: Widespread counterfeit £1 coins mimicked genuine ones, raising circulation concerns.
• Recall money traits: Acceptability requires public confidence in coins as valid payment.
• Link problem: Fakes reduce willingness to accept £1 coins due to verification doubts.
• Conclude threat: This directly undermines acceptability, prompting redesign.

Why A is correct:

• Acceptability means people readily accept money as payment; counterfeits erode trust, making transactions hesitant per economic definitions of sound money.

Why the others are wrong:

• B: Divisibility allows breaking money into units; fakes don't impair this inherent property.
• C: Durability resists physical wear; counterfeits involve authenticity, not longevity.
• D: Portability enables easy transport; fakes don't affect coin size or weight.

Final answer: A