I have__time to do __hard work that I feel very stressed.A.such little ,such B .so little ,such

选择B
such 是形容词,修饰名词或名词词组,so是副词,只能修饰形容词或副
词.so 还可与表示数量的形容词many,few,much, little连用,形成固定搭配. 所以前面little是表示数量的形容词,故应该用so.
so + adj. such + a(n) + n.
so + adj. + a(n) + n. such + n. (pl.)
so + adj. + n. (pl.)such +n. (pl.)
so + adj. + n. [不可数]such +n. [不可数]