What is a monogram? a. a person or group that commissions a work of art. b.a casket or container for sacred relics. c.a character consisting of two or more letters combined or interwoven. d.a likeness of someone, usually painted for purpose to memorialize the person. 

C.A character consisting of two or more letters combined or interwoven. 

A monogram is a character consisting of two or more letters combined or interwoven. So the answer is C :)

It depends on what type of third separates the three notes.for example: if you have two mayor thirds is an "aumented chord"if you have two minor thirds is an "diminued chord"if you have one mayor first and then one minor is a "mayor chord"and inverted is a "minor chord"