Which of the Following Is a Type of Software Licensed

question 69

Multiple Choice

Which of the following is a type of software licensed for free use during a trial period, after which users are supposed to pay a registration fee?

• A) shareware
• B) freeware
• C) open source software
• D) commercial software

---

Definitions:

McLafferty Rearrangement

A fragmentation reaction observed in mass spectrometry analysis, involving the transfer of a hydrogen atom via a six-membered transition state leading to the cleavage of a molecule.

Carboxylic Acids

Organic compounds characterized by a carboxyl group (-COOH), known for their acidic properties.

Grignard Reagents

Reactive compounds consisting of magnesium bonded to an organic group, used in the formation of carbon-carbon bonds.

Infrared Spectrum

A representation of the infrared light absorption or emission of a substance, providing information about molecular vibrations and compound identity.