. . . . . . . . the broker had warned him that the stock was a . . . . . . . . investment, he insisted on buying a thousand shares.

A. Because , prudent

B. Since , negligible

C. Because , speculative

D. As , vulnerable

E. Although , precarious

Answer: Option E

Solution(By Examveda Team)

Although the broker had warned him that the stock was a precarious investment, he insisted on buying a thousand shares.