![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
Every lawyer knows that it is difficult to prove culpability in technically complicated lawsuits if there is a lack of some expert to testify about the complicated technical aspects.
A.
if there is a lack of some expert to testify
B.
unless there will be an expert who might testify
C.
should there be no testimony from an expert
D.
without an expert's testimony
E.
lacking some expert to testify