Concept:Syllogism: From two negative statements (No A is B, No B is C), no definite relation between A and C can be concluded.
Explanation:Let months = M, years = Y, seconds = S.
Statement I: No M is Y →
M∩Y=∅.
Statement II: No Y is S →
Y∩S=∅.
These give no relation between M and S; they may overlap or be disjoint.
Conclusion I: "All months are second" is not necessarily true.
Conclusion II: "No second is month" (i.e.,
S∩M=∅) is also not guaranteed.
Thus neither conclusion follows.
Answer: