Which sentence uses punctuation correctly?

a.
since i take my camera everywhere i think of it as part of my body.

b.
before the sun sets, i want to take a picture of these majestic clouds.

c.
i like to take my new digital camera with me, wherever i travel.

Helen grey by christina georgina rossetti because one loves you, helen grey, is that a reason you should pout, and like a march wind veer about, and frown, and say your shrewish say? don't strain the cord until it snaps, don't split the sound heart with your wedge, don't cut your fingers with the edge of your keen wit; you may, perhaps. because you're handsome, helen grey, is that a reason to be proud? ✔ your eyes are bold, your laugh is loud, your steps go mincing on their way; but so you miss that modest charm which is the surest charm of all: take heed, you yet may trip and fall, and no man care to stretch his arm. stoop from your cold height, helen grey, come down, and take a lowlier place; come down, to fill it now with grace; come down you must perforce some day: for years cannot be kept at bay, and fading years will make you old; then in their turn will men seem cold, when you yourself are nipped and grey. how does the line in bold suggest a key idea developed in the poem? a) it compares real qualities with superficial ones. b) it confirms that helen is attractive. c) it implies beauty is nothing to celebrate. d) it suggests pride should be based on other things.

Dogs make wonderful pets because they us stay happy and healthy. the topic sentence is "dogs make wonderful pets." , is this correct? i keep doubting myself.

One of the author’s purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted . . in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with . . enormous speed