The five kingdom classifications system was used and tell me invention of

A the scientific method
B jeans
C DNA sequencing
D the microscope

A The invention of the scientific method was credited to Sir Francis Bacon in the early 17th century.

B Jeans were invented by Levi Strauss and Jacob Davis in 1873.

C DNA sequencing was developed in the 1970s by Frederick Sanger and his colleagues, leading to the first complete sequencing of a DNA molecule in 1977.

D The first microscope was invented in the late 16th century by Zacharias Janssen and Hans Lippershey.

no is it a b c or d

A - The invention of the scientific method

B - Jeans

C - DNA sequencing

D - The microscope

what is it

D - The microscope