C is a circle left open on one side, read as something incomplete yet receptive. As a middling school grade it can also reflect worry about being merely average.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.