Which of the following is a semantic barrier?

Redundancy in writing is a semantic barrier because it clouds meaning through needless repetition.

Semantic barriers arise at the level of words and meaning, not at the physical carrier.

A blurred image on television is a technical or physical fault in the signal, not a meaning problem.

Unclear printing in newspapers is again a physical defect in reproduction, not semantics.

Static in broadcasting is physical noise interfering with the signal, outside the semantic level.

Anything that distorts the sense of words, like wordy redundancy, counts as semantic.