Answer: A. You would raise your policy premium substantially and Sam would not accept because he doesn't know about the Japanese.
Step-by-step explanation:
In such a scenario as the one described above, the best option as an Insurance Agent is indeed to raise premiums substantially.
As the Japanese will most probably get to market first with the new Mayonnaise Substitute, they will have the rights to it's invention and could even patent it.
This means that Sam and SCAM will most likely suffer a loss as a result of this.
As there is such a high chance of loss, charging a substantially higher premium to enable coverage is only logical and makes business sense.
Sam does not know however that the Japanese are so far ahead and having rejected a substantially lower offer, will reject the newer, substantially higher one as well.