The correct sentence is the second one "She built a high-performance CPU".
The first sentence should not contain a comma and is incorrect. The third sentence is incorrect because there shouldn't be a dash before CPU. The fourth sentence is incorrect because CPU is not written with dashes.
48 states were in the USA
The answer you are looking for I believe to be <span><span>
<u>4) A type of monologue in which a character speaks to himself and expresses his sincere feelings and thoughts.</u>
</span></span>The actual definition of <em>soliloquy</em> is "an act of speaking one's thoughts aloud when by oneself or regardless of any hearers, especially by a character in a play"
Though choice two is a great possibility the keyword you are looking for is "speaking to himself"
I hope this is right and helps!!
B. <u>Darl</u> is the answer!
Compound!
I hope this helps
