At Ursa Major Solar there is a requirement for a new field called Planet Details...

Ursa Major Solar requires a new field called Planet Details on the Planet object, where users can write detailed descriptions that can include pictures and links. The Rich Text Area field type is the best fit for this requirement.

Option B (Rich Text Area): A Rich Text Area field allows users to enter text with formatting options such as bold, italics, bullets, and numbering. Additionally, it supports inserting images and hyperlinks, which matches the requirement of including pictures and links in the description.

Rich Text Area Fields

Option A (Long Text Area): A Long Text Area field allows for lengthy text input but does not support formatting or embedding of images and links, which are necessary in this case.

Option C (Multi-Select Picklist): A Multi-Select Picklist allows users to select multiple values from a list but is not suitable for detailed descriptions or embedding images and links.

Option D (URL): A URL field is used to store and display a link but does not support text input or embedding images.

In summary, the Rich Text Area field type should be used because it allows formatted text, images, and links, which are required for the Planet Details field.