.下列各项中的加点词语使用正确的一项是（   ）

A．在学校秋季田径运动会上，我们班获得了团体总分第一名，全班同学弹冠相庆，在教室里欢呼雀跃，高兴极了。

B．这篇文章立意深远，结构严谨，虽然个别词语还待商榷，但瑕不掩瑜，它还是得到了阅卷老师的亲睐，给了满分。

C．张老师学识渊博，德高望重，同学们都很喜欢他。只要他上课，同学们都噤若寒蝉，纪律比很多老师上课都好。

D．学校的美化是请专业公司做的，花草树木的搭配，假山鱼池的布局，都别出心裁，让人一走进校园就能感受到不一样的美。

The blue of the sea is caused by the scattering of sunlight by tiny particles suspended in the water. Blue light, being of short wavelength, is scattered more efficiently than light of longer wavelengths. Although waters of the open ocean are commonly some shade of blue, green water is commonly seen near coasts, especially in tropical or subtropical regions. This is caused by yellow pigments being mixed with blue water. Phytoplankton are one source of the yellow pigment. Other microscopic plants may color the water brown or brownish-red. Near the shore, silt or sediment in suspension can give water a brownish hue. Outflow of large rivers can often be observed many miles offshore by the coloration of suspended soil particles.Marine phytoplankton (Greek for "plant wanderers") are microscopic single-celled plants that include diatoms, dinoflagellates, coccolithophorids, green algae, and blue-green algae, among others. The growth of these organisms, which photosynthesize light, depends on a delicate balance of nutrient enrichment via vertical mixing, which is often limited by the availability of nitrogen and light. Diatoms are one-celled plants with patterned glass coverings. Each glass, or silicon dioxide box, is ornamented with species-specific designs, pits, and perforations making them popular with microscopists and, more recently, electron scanning microscopists.

Phytoplankton are the source of which color pigment

A．Red.

B．Green.

C．Yellow.

D．Blue.