Answer:
Speech use tone of groups, and tone group can convey only one idea. writing uses sentences and a sentence can contain several ideas.
To make himself sound better
Habits can be difficult to develop, but not if you use the correct strategies. Establishing a daily gym routine will be easier if you already have a once-weekly gym routine. Being held accountable to another person increases motivation. If you slip up one day, don't stress. One small mistake will not erase the work you've already done.
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The answer is C. hope that helped