[Q]: Which of the following solutions is better for the following goal:
What sort of iron is needed to complete the solar alarm?

[A]: A soldering iron.

[Q]: Which of the following solutions is better for the following goal:
To make Papier-mache without any glue on hand,

[A]: mix together flour and a little bit of water until it has a glue-like consistency.

[Q]: Which of the following solutions is better for the following goal:
How do I cut the PVC post?

[A]: You can carefully cut the post with a table saw.

[Q]: Which of the following solutions is better for the following goal:
To dispense icing onto cupcakes, you can

[A]:
Place the icing into a plastic bag with a snip removed