Believe it or not, that's false. Your HR department would have you believe otherwise, but in the United States the National Labor Relations Act makes it illegal to fire workers for revealing their salaries. I believe the only exception is if you do it during working hours and/or on company property. On the other hand, I'm not a lawyer, do don't blame me if you get your ass fired.
Can you explain B a little more? You're saying hypothetically the nations bordering the Mediterranean Sea attained more advanced metal-making abilities than their neighbors because...why? Because before it was a seabed, the underlying land was rich in metals they could turn into gold and high-carbon-silicon steel?
And if that's the case, is the modern seabed also rich in these metals? What's the evidence against Welles' theory?