According to the passage, which of the following statements is true? 

(A)Pas-ta’al is a common ceremony among the officially-recognized aboringinal peoples in Taiwan. 

(B)Pas-ta’al is a ceremony unique to the Saisiyat people. 

(C)Japanese tourists are invited to the big ceremony every ten years. 

(D)Pas-ta’al takes place in mid-October every year.

賽夏族人一台灣的官方承認原住民群體之一，有一個獨特的祭祀儀式叫Pas-ta’al。該儀式是說已經進行(carried out)了多達400年。

The Saisiyat people—one of Taiwan’s officially recognized aboriginal groups—have a unique ritual例行公事，老規矩；（尤指）儀式 ceremony翻譯儀式, 典禮 called Pas-ta’al.

That ceremony is said to have been carried out for as many as 400 years. Today, it takes place every two years. And every ten years, it is larger and takes on added significance重要性、特別意義.  

The most recent ten-year ceremony was held in 2006 at two complementary補充的；互補 and overlapping相互重疊 sites in northern Taiwan during the full moon of the 10th lunar month. <br>    

Thousands gathered for the first day of the ceremony in Wufeng, Hsinchu County. Tourists from all over the island joined the local villagers in the elaborate精心計劃 ceremony in an open field. Men and women were dancing and singing, arms crossed, hand-in-hand, and moving in and out of a huge circle. Native Saisiyat people all wore bright red and white traditional costumes with intricate錯綜複雜的；複雜精細 weaving織造 and beading半圓形嵌條；串珠狀飾物.  

Some had  ornate裝飾華麗 decorations at the back, from which hung mirrors, beads（有孔的）珠子 and bells that rang( ring的過去式) and clanged（使）叮噹作響 as the dancers moved. Tourists were welcome but were asked to stay away from particular areas where secret rituasl例行公事，老規矩；（尤指）儀式 were performed by village elders. They were also advised to tie Japanese silver grass around their arms, cameras, and recorders.