Discussion
Following that modulator with a filter passing only frequencies above the carrier gives
Answer: B
Passing the higher product alone leaves upper sideband at 101 kHz, which is single sideband suppressed carrier. Passing the lower product would give lower sideband at 99 kHz. Keeping both is DSB-SC, which is what the modulator produced before filtering. And restoring the carrier would give full-carrier AM, which would require deliberately adding back what the balance removed.
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