At 15.25 on Monday 7 August, a 29-year-old man was found dead in his car down a quiet country lane. The police said that the man had died from carbon monoxide poisoning. It is also known that: The victim, Giles Clark, was recently appointed sales executive for an electrical firm, Viscox. Clark was found gagged with his feet and hands tied. Clark had recently lost the company sales worth £250,000. A director of Viscox had recently been suspected of fraud. Two men of large build were seen walking a Rottweiler down the country lane at 15.10 on Monday 7 August. Clark had recently had his car in the garage for a routine service. Clara, Clark's wife, had been having an affair with a work colleague, Charles Dence.

Question: Clark could have discovered his wife's affair and attempted to commit suicide.
Options:
A. true, B. false, C. uncertain
Answer: "A"