Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
(a) CCOC(C1=NCC(C)(CC)CN1)c1ccc(Cl)cc1
(b) CC(O)c1cc(N)cc(C(F)(F)F)c1
(c) CCOC(=O)NCCOc1ccc(Oc2ccccc2)cc1
(d) CC(=O)Nc1cc(Cl)ccc1Cl
Answer: a
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}