Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) O=C(O)Cc1ccc2c(c1)C(=O)c1ccccc1CO2
b) O=NN1CN2CN(C1)CN(N=O)C2
c) CCCSP(=O)(OCC)SCn1c(=O)oc2cc(Cl)cnc21
d) N#Cc1sc2c(=O)c3ccccc3c(=O)c=2sc1C#N
e) CCOP(=S)(OCC)SC(c1ccccc1)c1ccc(Cl)cc1
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}