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 additional words.
Options:
a.) O=CO
b.) CSC(C)=NOC(=O)N(C)SN(C1CCCCC1)P1(=S)OCC(C)(C)CO1
c.) CCOC(=O)CC[Si](OCC)(OCC)OCC
d.) ClC(Cl)=C(Cl)Cl
e.) CCC1(O)CN2CCC1CC2C(O)c1ccnc2ccc(OC)cc12
Answer: c
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}