The answer is 2
Because 2-3=-1
Having a high interest rate doesn't make a bond higher risk. The cause and effect goes in the other direction: if a bond is higher risk, then investors demand a higher return.
Consider two investment choices: you could put $100 in a bank and get paid $1 interest, or you could gamble $100 on a game of chance that pays out $101 if you win, or nothing if you lose. Unless you're a gambling addict, you won't take the risk of losing your money when the safe alternative pays just as much. But if the game pays the winner $200, then you might be interested.
Likewise, companies that have a higher risk of defaulting need to promise a higher interest rate on their bonds in order to get anyone to choose them over safe investments.
The answer is D, none of these.
This is because whole numbers, rational numbers, and integers fit within the category of rational numbers, which is the complete opposite of irrational numbers.
How would anyone know this