What is the difference between dynamic testing and static testing?

a$.$

Dynamic testing involves executing the software, while static testing involves analyzing the code or documentation.

b$.$

Dynamic testing is performed by humans, while static testing is performed by automated tools.

c$.$

Dynamic testing focuses on functional testing, while static testing focuses on non$-$functional testing.

d$.$

Dynamic testing is conducted during development, while static testing is performed after the software is deployed.