Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a: CCCCCCCOCCOCCO
b: CCC(CC)COCCOCCCN1C(=O)C2C3C=CC(C3)C2C1=O
c: Cc1cc(OC(=O)N(C)C)nn1C(=O)N(C)C
d: C1CCC2OCCOCCOC3CCCCC3OCCOCCOC2C1
e: COC(=O)Nc1nc2cc(Oc3ccc4[nH]c(NC(=O)OC)nc4c3)ccc2[nH]1
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}