Can someone please check my answers? Tell me if I'm right or wrong. If I'm wrong then please correct me:

Please choose a term from the following word bank, and place the corresponding CAPITAL LETTER, next to the statement it best matches:

A. Chromatic B. Corpus callosum C. Diatonic D. Myelin E. Half step

1. Part of the brain which connects the two Hemispheres. 1. B)Corpus Callosum

2. The smallest interval in the musical Alphabet. 2. E)Half Step

3. Moving through pitches using Whole and Half steps. 3. C)Diatonic

4. The fatty substance that insulates Axons in the brain through practice. 4. D)Myelin

5. Moving through pitches using only Half steps. 5.A)Chromatic