GRE Text Completion: JiJing 1373-GRE填空机经1373题 - Z717ED15U19DA773A

Investors are grateful that the attorney general has stepped in to pursue inquiries into the misfeasance in the financial markets, given that the regulators officially charged with policing the industry have been ____________. A. diffident B. meticulous C. straightforward D. implacable E. tenacious