Select an assertion that checks if the string contains 'war' for the given code block.

def test$\_$eq$($self$)$:

self.$[$XXX$]$

Group of answer choices

assertAlmostEqual$($ 'war', $\text{'}$In war, events of importance are the result of trivial causes.$\text{'})$

assertIn$($ 'war', $\text{'}$In war, events of importance are the result of trivial causes.$\text{'})$

assertIs$($ 'war', $\text{'}$In war, events of importance are the result of trivial causes.$\text{'})$

assertIn$(\text{'}$In war, events of importance are the result of trivial causes.$\text{'},$ 'war'$)$