Software & Systems Engineering·Testing That Earns Its Place·FoundationWhy there are more small testsTest suites usually contain many small tests and far fewer that exercise the whole system.Why that shape?ABecause whole system tests are much harder to write, and so far fewer of them get writtenBBecause small tests find more bugs than large onesCBecause small tests are fast and point at the fault, while whole system tests do neitherDBecause small tests can run in parallel and large ones cannotCheck answer