A) Más fea que. B) Tan alta como. C) Más alto que. D) Menos fea que. E) Más alta que. F) Menos alto que.
These are comparatives.
"Más ... que" is used for something that is more great or bigger than another thing, & "Menos ... que" is something smaller or in a fewer quantity than sth else.
Finally, "tan ... como" is used like: as big as, as tall as, as smart as, etc.