Question

it has been suggested that all automobiles be converted to electric power by the year 2020. ______, there simply isnt the infrastructure in place to accommodate such a change. which word or phrase best connects the ideas in these sentences? a. therefore b. nowadays c. unfortunately d. in contrast

Explanation:

• Option A "Therefore" is used for showing a result or conclusion, but the second sentence is not a result of the first, so A is incorrect.
• Option B "Nowadays" refers to the present time and doesn't connect the two ideas about the suggestion and the infrastructure issue, so B is incorrect.
• Option C "Unfortunately" is appropriate as it conveys a sense of regret or a negative situation (the lack of infrastructure) in relation to the suggestion of converting all automobiles to electric power, showing that the desired change can't happen due to infrastructure issues.
• Option D "In contrast" is used to show a difference or opposition between two things, but here the second sentence is not contrasting with the first in the way "In contrast" requires, so D is incorrect.

Answer:

C. Unfortunately