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 additional words.
Options:
(a) CCOC(=O)Oc1ccc(CCNC(=O)C(CCSC)NC(C)=O)cc1OC(=O)OCC
(b) CCOc1cc(Cc2cnc(N)nc2N)cc(OCC)c1-n1cccc1
(c) O=Cc1ccccc1
(d) CCC(=O)c1ccc2c(c1)N(CCCN(C)C)c1ccccc1S2
(e) N#CC(Cl)CS(=O)(=O)c1ccccc1
Answer: b
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}