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 COP(=S)(OC)SCC(N)=O
b CCO[Si](C)(CCl)OCC
c O=[N+]([O-])c1cc(Br)cc2[nH]c(C(F)(F)F)nc12
d ClCOCCl
e O=C(OC1CCC(N2CCCCC2)CC1)C1CCCCC1
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}