Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any additional words.
Options:
a: CSC(C)=NOC(=O)N(C)SN(C)C(=O)Oc1ccc(OC(=O)N(C)SN(C)C(=O)ON=C(C)SC)cc1
b: CNC(=O)Oc1ccc(O)c2ccccc12
c: CCOc1cc(Cc2cnc(N)nc2N)cc(OCC)c1-n1cccc1
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}