Final answer:
The 3D letter 'E' typically exhibits plane symmetry, which divides it into two mirror-image halves, and generally does not have point symmetry.
Step-by-step explanation:
When considering the kinds of symmetry for a 3D representation of the letter 'E', it's important to analyze whether it has line symmetry, plane symmetry, or if it lacks symmetry altogether, referred to as none. A 3D 'E' would typically have one plane of symmetry which bisects it, yielding two mirror-image halves. Point symmetry, which is also known as rotational symmetry, does not typically apply to the letter 'E' as its shape does not allow for it to look the same when rotated 180 degrees about a central point. Therefore, the correct kind of symmetry for a 3D letter 'E' is generally just plane symmetry.