Good question, but I thing the answer options are a little confusing.
"-Extents can be owned by multiple objects"
True, mixed extents.
"-Rows can span multiple pages (excluding LOB data)"
"-Extents can be owned by only one object"
False, since they can be a mixed extent (or even an extent that has not been allocated). Perhaps it's your use of the word "only" that confuses me, but what I read is "an extent must be owned by one, and only one, object."
"-Data pages can be owned by multiple objects"
"-Text data is stored on data pages."
Do you mean text as in the datatype text, or as in text/strings? If you mean text as the text datatype, which makes this answer false, then please write so. If you mean text as in all data types that can store strings, then this answer is true.
"-Data pages can be owned by only one object"
True. One and only one object can use a data page. And when you compare the extent vs data page answers, you see why I'm confused.
"-A table row can be bigger than 8060 bytes if some of the datatypes are variable"
True. Again, row-overflow.
I don't care about the points, but I think some of the options were a little vague.
Or perhaps I'm just wrong :-)