Electric circuits — practice question

Only one ammeter in the circuit gives a wrong reading. Which ammeter gives the wrong reading?

• Aammeter A: reading = $0.30\,\text{A}$
• Bammeter B: reading = $0.10\,\text{A}$
• Cammeter C: reading = $0.25\,\text{A}$
• Dammeter D: reading = $0.20\,\text{A}$