Which is the general question to following sentences?
(Выберите общий вопрос к следующим предложениям)
The engineer will test his automatic device in the laboratory
Выберите один ответ:
a. Will test the engineer his automatic device in the laboratory?
b. Will the engineer test his automatic device in the laboratory?
c. The engineer will test his automatic device in the laboratory?
d. Will do the engineer test his automatic device in the laboratory?