Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a Cc1cc(Cl)ccc1OCC(=O)OCCCCCC(C)C
b CCOP(=S)(OCC)SCc1nnc(SCC)s1
c COc1c2ccoc2cc2oc(C)cc(=O)c12
d CC(C)OC(=O)Nc1cccc(Cl)c1
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}