You are the test analyst working on the test design of software that will control the temperature automatically in a thermal power plant that has $15000$ employees working in the plant physically. Failure of the software will raise the temperature of the semiconductor that will in turn result in heavy loss. What will be the level of test coverage will be included to validate the software for the semiconductor?

What is the correct answer $-$

a$.$ Multiple Condition coverage

b$.$ Modified Condition$/$Decision coverage

c$.$ Branch coverage $+$ Modified Condition$/$Decision coverage

d$.$ Branch coverage $+$ Statement coverage