According to the study, "happy." or persistent, marshes all shared common traits. What healthy marshes shared most of all was vegetation
distributed on the higher end across low-to-high landscape elevations. The single most important measurement in assessing a "happy" tidal
marsh is whether a sizeable proportion of its vegetation is at a high elevation in relation to current water levels. Another feature of "happy"
marshes is a low percentage of unvegetated versus vegetated area in the marsh landscape.
What is the meaning of "happy as used in the excerpt?
OA.
fortunate
OB.
indifferent
OC. content
OD. enduring