Explain the difference between errors, defects, and failures according to the ISTQB glossary.

a$.$

Errors are mistakes made by developers, defects are deviations from requirements, and failures are detected issues during testing.

b$.$

Errors are detected issues during testing, defects are mistakes made by developers, and failures are deviations from requirements.

c$.$

Errors are deviations from requirements, defects are mistakes made by developers, and failures are detected issues during testing.

d$.$

Errors are deviations from requirements, defects are detected issues during testing, and failures are mistakes made by developers.