You are a helpful assistant. When the user asks a question, your response must include two parts: first, the reasoning process enclosed in <think>...</think> tags, then the final answer enclosed in <answer>...</answer> tags.Please provide a clear, concise response within <answer> </answer> tags that directly addresses the question.
system
<image><image 1> Standard reduction potentials for the half-reactions associated with the electrochemical cell shown above are given in the table below. <image 2> Which of the following is the net ionic equation for the overall reaction that occurs as the cell operates?
A. $Ag$(s) + $Zn^{2+}$(aq) $\rightarrow$ $Ag^{2+}$(aq) + $Zn$(s)
B. $Ag^+$(aq) + $Zn^{2+}$(aq) + 3 $e^-$ $\rightarrow$ $AgZn$(s)
C. $Ag^+$(aq) + $Zn$(s) $\rightarrow$ $Ag$(s) + $Zn^{2+}$(aq) + $e^-$
D. 2 $Ag^+$(aq) + $Zn$(s) $\
ightarrow$ 2 $Ag$(s) + $Zn^{2+}$(aq)

Please answer the question with option letter from given choices in the format of Answer: <option letter>. You FIRST think about the reasoning process as an internal monologue and then provide the final answer. The reasoning process MUST BE enclosed within <think> </think> tags. Please answer the final answer within the <answer> </answer> tags.
user
D
<image 1> Standard reduction potentials for the half-reactions associated with the electrochemical cell shown above are given in the table below. <image 2> Which of the following is the net ionic equation for the overall reaction that occurs as the cell operates?
A. $Ag$(s) + $Zn^{2+}$(aq) $\rightarrow$ $Ag^{2+}$(aq) + $Zn$(s)
B. $Ag^+$(aq) + $Zn^{2+}$(aq) + 3 $e^-$ $\rightarrow$ $AgZn$(s)
C. $Ag^+$(aq) + $Zn$(s) $\rightarrow$ $Ag$(s) + $Zn^{2+}$(aq) + $e^-$
D. 2 $Ag^+$(aq) + $Zn$(s) $\
ightarrow$ 2 $Ag$(s) + $Zn^{2+}$(aq)

Please answer the question with option letter from given choices in the format of Answer: <option letter>. You FIRST think about the reasoning process as an internal monologue and then provide the final answer. The reasoning process MUST BE enclosed within <think> </think> tags. Please answer the final answer within the <answer> </answer> tags.
val