(i) The Codon is read in tRNA in a contiguous fashion. There is no punctuations.
(ii) Some amino acids are coded by more than one codon.
(iii) UUU would code for phenylalanine.
(iv) GAA is a stop terminator codon.
Comparing the above statements (i-iv) select the correct option marked with T(True) and F(False)
w.r.t. salient features of genetic code.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.