Final answer:
C) Walking in the rain with a waterproof shirt and D) Walking in the rain with an umbrella are both valid counterexamples to the statement 'If you walk in the rain, your shirt will get wet' because they present scenarios where the conditional action (walking in the rain) does not lead to the expected outcome (getting the shirt wet).
Step-by-step explanation:
To find a possible counterexample to the statement "If you walk in the rain, your shirt will get wet," we are looking for a scenario where you could walk in the rain but your shirt does not get wet. The options given are: a) Walking in the rain without a shirt b) Not walking in the rain but getting the shirt wet c) Walking in the rain with a waterproof shirt d) Walking in the rain with an umbrella.
Options a and b are not valid counterexamples because a does not fulfill the 'walking in the rain with a shirt' part of the conditional, and b does not involve walking in the rain. Option d, walking in the rain with an umbrella, could work as a counterexample since the umbrella could prevent the shirt from getting wet despite walking in the rain. Similarly, option c is also a valid counterexample because a waterproof shirt would not get wet even if you are walking in the rain.