Which Is the Correct Breakdown and Translation of the Medical

Which is the correct breakdown and translation of the medical term pyeloureterectasia?

A) pyelo (pus) + ureter (ureter) + ectas (expansion) + ia (condition) = dilation of the ureter due to pus
B) pyelo (pus) + ureter (ureter) + ectas (narrowing) + ia (condition) = narrowing of the ureter due to pus
C) pyelo (renal pelvis) + ureter (ureter) + ectas (expansion) + ia (condition) = dilation of the renal pelvis and ureter
D) pyelo (renal pelvis) + ureter (ureter) + ectas (narrowing) + ia (condition) = narrowing of the renal pelvis and ureter