John and Jane Doe are regular middle$-$class working professionals considering buying their first home. They have met the seller and the seller's agent but were really unable to be sure about whether they were failing to disclose any major defects. Based on what Jane learned in her strategy class, she understands that the seller's agent has no incentive to maintain goodwill with the buyer after the sale of the home is completed. Which critical dimension of transaction costs best explains why the seller and her agent have no economic incentive to maintain goodwill with the buyers?

Frequency

Durability

Uncertainty

Accountability