Choose the correct sequence of urine transport.

• A
  $DCTs \rightarrow$ Collecting duct $\rightarrow$ Medullary pyramid $\rightarrow$ Calyces $\rightarrow$ Renal pelvis.
• B
  Collecting duct $\rightarrow$ Medullary pyramid $\rightarrow$ Calyces $\rightarrow$ $DCTs \rightarrow$ Renal pelvis.
• C
  Medullary pyramid $\rightarrow$ Collecting duct $\rightarrow$ $DCTs \rightarrow$ Calyces $\rightarrow$ Renal pelvis.
• D
  $DCTs \rightarrow$ Calyces $\rightarrow$ Renal pelvis $\rightarrow$ Collecting tubule $\rightarrow$ Medullary pyramid.