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 other words.
Options:
a.) CCC(C)(C)OC(=O)Nc1ccco1
b.) O=S1(=O)CCC(Br)C1
c.) C=COCCSCC
d.) Cc1c(Cl)cc2[nH]c(C(F)(F)F)nc2c1[N+](=O)[O-]
e.) COC1CCC(OC2CC3(CC(O)C(C)C(C(C)C=C(C)C(=O)C(C)CC(C)C(=O)O)O3)OC2(C)C2CCC(C)C3(OC(C4OC(O)(CO)C(C)CC4C)CC3C)O2)OC1C
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}