What must a licensee inform seller clients about regarding property condition disclosures?

The correct choice highlights the important responsibility that sellers have regarding property condition disclosures. Licensees must inform their seller clients that they are legally required to disclose known defects and issues with the property. This is a crucial aspect of real estate transactions, as full disclosure protects both the seller from potential lawsuits and the buyer from unforeseen problems down the line.

By informing sellers of this responsibility, a licensee helps ensure that the sellers are aware of their obligations under the law, which can increase the transparency of the transaction and foster trust with potential buyers. This knowledge also helps sellers prepare their disclosures accurately, reducing the risk of future legal complications.

The other options fail to capture the essence of the seller's responsibilities in a real estate transaction. Ignoring disclosures, suggesting that they are optional, or advising sellers to use an inspection service instead of disclosing known issues does not align with legal requirements and ethical practices in real estate.