instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Armaments manufacturers use lithium to produce tritium in _ ways.
answer:
two


question:
White sturgeon inhabit _ large river systems, all on the western coast of North America.
answer:
three


question:
Doctors divide spinal cord tumors into _ major groups based on where they are found.
answer:

three