The subject of the sentence is b. you~
Iambic feet have two beats. A "beat" would be an unstressed syllable followed by a stressed syllable. You can hear a "beat" in the way the emphasis is placed on the unstressed versus the stressed syllables. Iambic feet go on to make a variety of poetic styles, such as iambic pentameter. Hope this helps.
No algebra is not capitalized it’s only capitalized if it’s the beginning of a sentence.
Answer:
a) unless
Explanation:
try to substitute the word into the sentence and see if it makes sense
hope this helps, pls mark brainliest :D