${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{i}s\text{w}\text{h}\text{e}\text{n}an\text{i}\text{n}\text{v}\text{e}\text{s}\text{t}\text{m}\text{e}\text{n}\text{t}\text{b}\text{a}\text{n}\text{k}\text{i}\text{n}\text{v}\text{e}\text{s}\text{t}\text{s}insecurities\text{f}\text{o}\text{r}\text{t}\text{h}\text{e}\text{i}\text{r}\text{o}\text{w}\text{n}\text{a}\text{c}\text{c}\text{o}\text{u}\text{n}\text{t}\text{.}}$

Group $of$ answer choices

Principal investing $(proprietary$ trading$)$

Short selling

Public offering

Underwriting

Private placement