Final answer:
Jan's 'blindness' is metaphorical, referring to her inability to piece together or understand her world. This could be due to being overwhelmed, misled, lacking in critical thinking or easily distracted.
Step-by-step explanation:
The narrative suggests Jan became 'blinded' due to a mix of factors primarily related to cognition and perception. Distractions, misconceptions or a skewed understanding of reality might have caused a form of symbolic blindness, implying a lack of awareness or understanding rather than a literal visual impairment. So the answer a) She was emotionally overwhelmed, c) She was intentionally misled, and d) She lacked critical thinking skills all seem related. Other factors, like distractions (from the inattentional blindness example) might also play a role.
For reference, consider the example of Bruce Bridgeman who was stereoblind; he was literally unable to perceive certain visual cues. However, Jan's 'blindness' seems metaphorical, referring to her inability to put things together or understand her reality. Just as a person who has known a skewed reality for so long might struggle to learn the truth, so too does Jan seem to struggle with understanding her world.
Learn more about Metaphorical Blindness