Consider the following conversation snippets and indicate whether they are valid topics to discuss at a stand$-$up meeting in agile project by placing a check mark in the appropriate column $($Valid Topic vs$.$ Invalid Topic$).$

$"$My PC still needs more RAM."

$$ "I finished testing the launcher."

$$ "I think we should add a turbo booster."

$$ "I just finished adding the supercharger."

$$ "Bill from accounting did not approve my trip to see the users."

$$ "Wendy from marketing won't go on a date with me$."$

$$ "I am still stuck trying to attach the nose cone."

$"$If you thread it backwards, the nose cone should go on easily."