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Question:

What is the best word choice for the underlined word in this sentence? (6) "However, sanitation workers can actually work in a variety of places."

A as it is now
Explaination

However transitions the reader to the contrast of alternative varieties of sanitation workers from what people normally envision.The other transition choices do not indicate the correct shift of what comes next, as Similarly suggests an agreement that is not there, Since is used when there is a cause and effect structure, which this is not, and Obviously not only draws a conclusion that is not there, but it also changes the tone to be a little rude and condescending to the reader.