Answer:
Corporate profits
Explanation:
Because we need to know the profits in public and private institutions in order to measure economic growth. It is hard to measure economy only by using the information of corporate benefits.
The others options are essential economic indicators related to natural resources, investment, capital and workforce.
It was called black gold because when it was extracted from the ground it was black plus it was extremely valuable hence the nickname "Black Gold"
The composer who lived during the Classical era is: Johann Christian Bach.
<h3>Who is Johann Christian Bach?</h3>
Johann Christian Bach was a music composer who lived during the classical era and was popularly known as a classical musical during his life.
Johann Christian Bach data includes:
- Birth/death dates: September 5, 1735 to January 1, 1782 .
- Country where he was born and/or lived: Leipzig, Germany.
- Influence on Classical music and/or other composers: young Mozart.
- Musical style, forms, or pieces he's known for: Composer of the Classical era.
- Listening samples of his music: Lucio sila; Amadis de Gaule.
Therefore the composer who lived during the Classical era is: Johann Christian Bach.
Learn more about Johann Christian Bach here:brainly.com/question/24849100
#SPJ1
Yeeeeehaaaaaaaa thank you sir
