WILL GIVE BRAINLIEST AND 30 POINTS!
Charlie writes the steps shown to describe the use of a transistor in a closed circuit with flowing current.

Using a Transistor to Amplify a Signal
1. Current (I1) flows from the base to the emitter.
2. An input causes a small increase in voltage across the base and emitter.
3. I1 increases a small amount.
4. Current (I2) flowing from the emitter to the collector changes a large amount.

Which change corrects the error in his steps?

Change the title to “Using a Transistor as a Switch.”
Change step 1 to say that no current flows in the transistor at the start.
Reverse the sizes of the changes in current in steps 3 and 4.
Reverse the direction of current in step 4.

Reverse the direction of current in step 4

Acetic acid  /əˈsiːtɪk/, systematically named  ethanoic acid  /ˌɛθəˈnoʊɪk/, is a colourless liquid  organic compound  with the  chemical formula  ch3cooh (also written as ch3co2h or c2h4o2). when undiluted, it is sometimes called  glacial acetic acid.  vinegar  is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water. acetic acid has a distinctive sour taste and pungent smell. in addition to household vinegar, it is mainly produced as a precursor to  polyvinyl acetate  and  cellulose acetate. it is classified as a  weak acid  since it only partially  dissociates  in solution, but concentrated acetic acid is corrosive and can attack the skin.acetic acidnamespreferred iupac nameacetic acidsystematic iupac nameethanoic acidother namesvinegar (when dilute); hydrogen acetate; methanecarboxylic acid[1][2]identifierscas number64-19-7  3d model (jsmol)interactive image3dmetb00009 reference506007chebichebi: 15366  chemblchembl539  chemspider171  drugbankdb03166  echa infocard100.000.528ec number200-580-7e numbere260  (preservatives)gmelin reference1380iuphar/bps1058keggd00010  meshacetic+acidpubchem  cid176rtecs numberaf1225000uniiq40q9n063p  un number2789inchiinchi=1s/c2h4o2/c1-2(3)4/h1h3,(h,3,4)  key:   qtbsbxvteameqo-uhfffaoysa-n  smilescc(o)=o

You will hear a hissing sound because of the carbon dioxide escaping the can or bottle