I've actually done this test lol It's B! The passages does not say he or she is a doctor so therefore A is out. Also doesn't say anything about knowing someone who has died from heatstroke.So C is out. That leaves D and B. I went with B cause it makes more sense and goes with the passage. I know this is correct I've done it in USA test prep.
To send his son back to the cemetery.
What happens after Marry realizes she killed her husband? -- right there
Who is Mary's husband and what does he do for work? -- think and search
How do you feel about what Mary did to her husband? -- on my own
Why is Mary's husband talking to her so harshly and abruptly? -- author and me
It sounds to me like he means the opposite of the saying "ignorance is bliss."