Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
(a) CCCC(C)(COC(N)=O)COC(=O)NC(C)C
(b) CCCCP(=S)(CCCC)CCCC
(c) C=C(C)C(=O)OCCC[Si](OC)(OC)OC
(d) CNC(=O)Oc1ccccc1C1OC(C)C(C)O1
Answer: d
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}