Step 1: Classify statement 1.
Statement 1 says SEBI gave Insilco an informal guidance on the buyback of Non Convertible Debentures. This is a specific regulatory action that either happened or did not, it can be checked against SEBI's own records or public disclosures. This is a Fact.
Step 2: Classify statement 2.
Statement 2 says this move "could serve as a useful guide" for other companies. The word "useful" signals a value judgment, the statement is praising the move and expressing approval of its wider benefit, rather than stating a checkable fact or drawing a strict logical conclusion. This is a Judgment.
Step 3: Classify statement 3.
Statement 3 says the debentures are due for redemption in three annual installments. This is a concrete, checkable detail about the repayment schedule, the kind of fact that would appear in the debenture's offer document. This is a Fact.
Step 4: Classify statement 4.
Statement 4 says Insilco "may go ahead with early redemption since SEBI has clarified the process." This is not simply repeating known information, it is drawing a conclusion about what Insilco is likely to do next, based on the fact stated in statement 1 (SEBI's guidance). Predicting a future action from a known fact, without it being an opinion about right or wrong, is the definition of an Inference.
Step 5: Combine the four labels and match to the options.
Putting the four classifications in order gives F, J, F, I.
Step 6: Final Answer.
The sequence FJFI matches option (c).
\[
\boxed{\text{FJFI}}
\]