Final answer:
The chosen quotation demonstrates Mrs. Jordan's ability to fight off sudden illness and mental turmoil, rebounding in spirit, which illustrates her inner strength and resilience.
Step-by-step explanation:
The quotation that supports the inference that Mrs. Jordan possesses great inner strength and resilience is, "A sudden deadly sickness seized Jane. She fought the weakness, as she fought to be above suspicious thoughts, and it passed, leaving her conscious of her utter impotence. That, too, passed as her spirit rebounded. But she had again caught a glimpse of dark underhand domination, running its secret lines this time into her own household." This passage indicates that despite the sudden onset of illness and the recognition of betrayal within her own home, Jane, presumably Mrs. Jordan, fights off the weakness and recovers her spirit, showing her resilience and her capacity to deal with adverse situations.