The best summary based on key words for the paragraph is
C.Multiparty parliamentary governments are less stable.
D.Use a plan to ensure enough parts are available
I would love to help but I’m afraid that there’s a book that is behind this and I haven’t read it so I wouldn’t know how to answer these questions.
She believes that he the right one for her
There are several ways in which scientists attempt to eliminate mistakes and fake results from their research. For example, the use of the scientific method allows scientists to experiment (in most cases), which allows them to see whether their results can be replicated in real life.
Another method is through peer-reviewing systems for scholarly review. This means that scientists check each other's work to make sure it meets some quality standards. Also, it is a way to stop incomplete or erroneous information from spreading.