During the early months of 2009, some economists concluded that the sl

Imo. D

During the early months of 2009, some economists concluded that the slew of U.S. government programs created during the fall of 2008 to stabilize an economy marked by an absence of credit, a wave of enormous asset write downs, a precipitous decline in housing prices, and a historic loss of consumer confidence has not succeeded in engendering healthy intra-bank credit flows and reviving depressed equity prices.
c C
During the early months of 2009, some economists concluded that the slew of US government programs created during the fall of 2008 to stabilize A, B, C and D and to revive depressed equity prices.
Reporting verb, concluded, followed by that indicates subjunctive verb is required. So, it can be paired with subject in plural verb form/be form/to form.

A. has not succeeded in engendering healthy intra-bank credit flows and reviving depressed equity prices - verb error
B. have not succeeded in engendering healthy intra-bank credit flows and reviving depressed equity prices - parallelism error
C. has not succeeded in engendering healthy intra-bank credit flows and bringing about the revival of - verb error
D. have not succeeded in engendering healthy intra-bank credit flows and to revive depressed equity prices - Hold it, seems no error
E. has not succeeded in engendering healthy intra-bank credit flows along with a revival of depressed equity prices - verb error