The definition of euphonious is pleasing to the ear. It can refer to words and sounds. Mild and calming words in some text or book have an euphonic effect, a pleasant effect. Euphonious in the text is achieved by the use of vowel sounds. contribute to the creation of serene images. Also, music that produces a pleasant sound is euphonic. It is achieved with mild tones that smoothly affect the listener.
Your statement is: a. True