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, or d without using any other words.
Options:
a COc1ccc2c(c1)OC(C)(C)C(c1ccccc1)C2c1ccc(OCCCCl)cc1
b CCOP(=S)(Cl)Cl
c CNC(=O)Oc1cccc2c1OCC2
d O=P1(NCCCl)OCCCN1CCCl
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}