Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
[a] OCC1OC(N2CCN(C3OC(CO)C(O)C(O)C3O)CC2)C(O)C(O)C1O
[b] CCCCn1c(C)cc(=NC(=O)c2ccccc2O)n1-c1ccccc1
[c] O=C1C=CC(=O)c2ccccc21
[d] CNS(=O)(=O)CCNC(=O)N(CCCl)N=O
[e] CCCCCCC1=CC(=O)CC(c2ccc3c(c2)OCO3)C1
Answer: c
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}