Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
(a) CCOC(C1=NCC(CC)(CC)CN1)c1cccc(Cl)c1
(b) CCOP(=O)(OCC)SCc1nnc(SC)s1
(c) CC(C)c1cccc(C(C)C)c1
(d) CCOP(=S)(Oc1cnn(C)c(=O)c1SCC)OC(C)C
Answer: d
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}