The new electric pencil sharpener does not work properly. i prefer the old manual one. which is the best way to combine the sentences?
1)the new electric pencil sharpener does not sharpen well; i prefer the old manual one.
2)the new electric pencil sharpener does not sharpen well: i prefer the old manual one.
3)the new electric pencil sharpener does not sharpen well, i prefer the old manual one.

Option 1) The new electric pencil sharpener does not sharpen well; I prefer the old manual one.

Explanation:

The two sentences that were combined are what we call independent clauses. An independent clause has a subject and a predicate. It expresses a complete thought on its own.

When combining independent clauses, we must be aware of the proper punctuation or conjunctions to be used to connect them. In this case, the best option is to add a semicolon since it is commonly used to join independent clauses.

A colon, on the other hand, does have an independent clause before it, but not necessarily another independent one after it. Even if it does introduce an independent clause, such clause usually explains or complements the first clause's meaning.

A comma is used to connect independent clauses when they are joined by a coordinating conjunction - and, but, for, so etc. -, which is not the case here.

the support that the author, uses in the article facing our fears is a): a definition of the part of the brain called the amygdala.

he takes neuroscientist joseph ledoux's words by telling that by falling to distinguish between evolutionary old systems located in the amygdala and newer systems, centered in the prefrontal cortex, doctors have conflated non conscious threat circuits in the brain with circuits that underlie the conscious experience of fear. that, the author says, "leads ledoux to the jarring conclusion that the amygdala, a decades-old centerpiece of the brain's fear circuit, does not underlie the conscious feeling of fear".

despite this, the author points out in the article that that is a controversial notion and that evidence, in animal and humans, supports the idea that core emotions can exist outside of conscious awareness.

a lot to the other person they me out big