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, d, or e without using any other words.
Options:
(a) CNCC1CCCCC1
(b) CCC1(CC)Oc2cccc(OC(=O)N(C)C(C)=O)c2O1
(c) CCCCNCC
(d) CC1COC(C(Cl)CCl)O1
(e) CN(c1ccc(Cl)cc1Br)c1c([N+](=O)[O-])cc([N+](=O)[O-])cc1C(F)(F)F
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}