A. Read
In past simple and participle, you write it as "read" but you pronunce it "red".
C. It is better to use creative license and do what you like
Therefore implies that something is occurring as a result of something else. As a result, therefore best implies a cause and effect structure.
Answer:The specialization of the assembly line meant that Ford no longer had to use craftsmen and could instead hire low-skill workers and teach them a few simple steps. ... Despite the higher labor costs, Ford's efficiencies allowed him to eventually lower the price of the Model T from its introductory rate of $850 to $260.