The multimedia component that would not enhance Bianca's presentation about Maria Beasley is:
A link to a blog about the sinking of the Titanic
This component is not relevant to Maria Beasley's life or her contributions to water safety. The other components, such as an image of the patent for Beasley's life raft, a digital timeline of her inventions, and a link to a podcast about her contributions, are all directly related to Beasley and would enhance the presentation.