B) Flowing rhythm. Good luck!
D to Db is a half step. Look at the keys B and C on the keyboard, there is no key in between them which means it is a half step. A whole step is two keys up (either black or white) therefore, D to Db would be a half step.
The answer is going to be “C” i hope this helps and have a great day!
Paper, books or canvases of sorts are labeled in size with A1, A2, A3 etc (the bigger the number the smaller the object) a4 paper is the standard size
