Read the following excerpt from a US court opinion:
```
resolutions to the CORC within four days to account for prison officials’ hypothetical non-implementation of a favorable IGP disposition would be impracticable and un-doubtably burdensome on the CORC and the IGP. Indeed, it would be counterintui-tive to require inmates who win during the grievance process to appeal their victories. See Sutton v. Wright, 265 F.Supp.2d 292, 298-99 (S.D.N.Y.2003) (“If a prisoner had to grieve non-compliance with favorable decisions under the PLRA, prison officials could keep prisoners out of court indefinitely by saying ‘yes’ to their grievances and 'no’ in practice.”) (citing Kaplan, 2000 WL 959728, at *3). Here, Abney repeatedly obtained favorable rulings on his grievances through the IGP. He adequately pleads that defendants never implemented the 01) ; Underwood v. Wilson, 151 F.3d 292, 295 (5th
```
What is the most suitable continuation to the opinion? Your options are:
A. holding that a remedy that prison officials prevent a prisoner from utilizing is not an available remedy under  1997e
B. holding that inmate plaintiff satisfied  1997ea where he attempted to exhaust all available administrative remedies but was prevented from doing so by prison personnel
C. recognizing that officials failure timely to respond to grievance could be basis for prisoner to show he exhausted available administrative remedies
D. holding remedy not available to prisoner where officials purportedly prevented plaintiff from employing the prisons administrative remedies
E. holding remedies not available to prisoner where officials failed to respond to his grievance during time period required by regulations
Reply with [A, B, C, D, E] only.