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> How does the green and photosynthesising mistletoe impact the tree it is hosting?
A. It will grow down into the roots and kill the tree.
B. Mistletoe is beneficial and increases the growth of the plant.
C. It just uses the tree for support and does not damage it.
D. I don't know and don't want to guess.
E. It has a very damaging impact on the health of the plant but localised to the place of infection.

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
E
<image 1> How does the green and photosynthesising mistletoe impact the tree it is hosting?
A. It will grow down into the roots and kill the tree.
B. Mistletoe is beneficial and increases the growth of the plant.
C. It just uses the tree for support and does not damage it.
D. I don't know and don't want to guess.
E. It has a very damaging impact on the health of the plant but localised to the place of infection.

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