If stamens are arranged in two whorls with anti petalous outer whorl then the condition is
Obdiplostemonous
Diplostemonous
Didynamous
Epiphyllous
The condition you described, where stamens are arranged in two whorls with an antipetalous (opposite the petals) outer whorl, is known as "obdiplostemony" or "obdiplostemonous."
In obdiplostemony, the stamens are arranged in two distinct whorls within a flower. The outer whorl, known as the "antipetalous whorl," is positioned opposite the petals, while the inner whorl may be positioned alternately with the petals or in any other arrangement.
This arrangement is different from the typical condition of "diplostemony," where stamens are arranged in two whorls, but both whorls are positioned alternately with the petals.
Obdiplostemony is a relatively uncommon arrangement of stamens in flowers and is observed in certain plant species. The specific arrangement and positioning of stamens can play a role in floral structure, pollination, and reproductive strategies of the plant. Hence, the correct answer is option 1.