4 questions: Name the structure (the ENTIRE space) indicated…

4 questions: Name the structure (the ENTIRE space) indicated by the bracket & label A? [a] Name the ENTIRE structure  indicated by the bracket & label B? [b] Name the SPECIFIC organ AND the SPECIFIC part of the organ indicated by the arrow and label C? [c] Name the SPECIFIC structure (indentation) indicated by the curved dotted line in label D? [d]