Which of the following is a type of chemical synthesis?

Total synthesis is a type of chemical synthesis that involves constructing complex organic molecules from simpler compounds. This process typically refers to the synthesis of natural products or other complex chemical compounds in the laboratory, starting from relatively simple precursors. In total synthesis, chemists often employ a series of strategic steps that can include various techniques such as organic reactions and manipulations to build the desired structure.

Total synthesis is significant in the field of chemistry because it enables researchers to study the properties and functions of specific molecules, which can be particularly important for understanding biological processes and developing new pharmaceuticals. The other types of synthesis mentioned—electrochemical, thermal, and photochemical—are also valid forms of synthesis but may refer to specific mechanisms or conditions used to teach chemical reactions, rather than the broader and comprehensive approach represented by total synthesis.