A note is generally defined as:

Multiple Choice

$00$:$33$:$18$

$$ a secured bond with an initial maturity of $10$ years or more.

a secured bond that initially matures in less than $10$ years.

any bond secured by a blanket mortgage.

an unsecured bond with an initial maturity of $10$ years or less.

any bond maturing in $10$ years or more.