Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
[a] ClCC(Cl)C(Cl)CCl
[b] CCC(=O)Nc1ccc2[nH]c(C(F)(F)F)nc2c1
[c] NS(=O)(=O)c1cc(C(=O)O)cc(N2CCCC2)c1Oc1ccccc1
[d] CC(C)(C)C(=O)CC#N
[e] CC(C)CC(=O)O
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}