If you plan to make a document for an audience, you want to do what they want to know, most likely.
So For A. You don't want to interest yourself, you want to interest the audience.
For B. Your readers are you priority, so knowing how much they know would help.
For C. Sources are whole other subject but to please them, you may worry about that a little less.
For D. Same as C
So B would be best.
being physically active can, control losing/ gaining weight, improve our cardiovascular system, strengthen bones/muscles and improve our mood and mental health. being physically active can help us live longer because it decreases the risk of type two diabetes and cancer.
i hope this helps : )
A. <span><span>I'd love to stay and talk, but—yikes! I'm really late now.
</span>This is the correct answer. The dash here is used properly because it shows the break in thought, and it changes the tone of the speaker. That is one use of dashes.
<span>
B. </span></span><span>Today we studied a poem, did an experiment, and multiplied fractions. (The sentence doesn't need the dash.)
C. </span><span>The coat—one of the most colorful that I've seen--seemed to be made of string. (It needs another dash after seen.)
</span>D. <span>There on the stage was my sister! (Does not need the dash.)</span><span>
</span>
