Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a. CCOC(=O)C(C)(CC)Oc1ccc(Cc2ccc(Cl)cc2)cc1
b. CC(=O)c1ccc2c(c1)C(=O)C1(CC1)O2
c. CCCCN1C(=O)C2CC=CCC2C1=O
d. CCSc1nc(NC(C)C)nc(NC(C)C)n1
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}