A Geneticist Introduces a Transgene into Yeast Cells and Isolates

Multiple Choice

A geneticist introduces a transgene into yeast cells and isolates five independent cell lines in which the transgene has integrated into the yeast genome. In four of the lines, the transgene is expressed strongly, but in the fifth there is no expression at all.
-Of the lines that express the transgene, one is transcribed but not translated. Which of the following is a likely explanation?

A) no promoter
B) no AUG in any frame
C) no compatible ribosome
D) high histone acetylation
E) missing transcription factor