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, c, or d without using any additional words.
Options:
a: COP(=O)(OC)Oc1nc(Cl)c(Cl)cc1Cl
b: CCCCC(CC)COP(=O)(OCCCO)OCC(CC)CCCC
c: COc1ccc2c3c1OC1C(O)CCC4C(C2)N(C)CCC341
d: COP(=S)(NC(=S)N(C)CCO)OC
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}