Question

grammar passage
31 franciss father was jan baptist van helmont, the flemish chemist, doctor, and alchemist who is credited with 32 founding the study of gases, and who claimed to be the first to use the word \gas\ scientifically. after an early clash with the inquisition, which didnt like some of his nuttier medical ideas, jan opted to play it safe and asked his son francis to publish 33 his writing bulk after his death. dutifully complying, francis squeezes into the picture. orbited by the heraldic shields of his ancestors, 34 he cozied up to dad as if ready to take on this intellectual bequest: 35 his fathers true heir, for the rest of the seventeenth century, he will be the van helmont.
in some sense, this was accurate. born in brussels in 1614 and dying at the end of the century in 1699, 36 francis in between left his mark on the era — no less a luminary than gottfried leibniz wrote his epitaph — but his historical influence was slight and he is now
referenced sentence without reading the whole passage
question 4/5
this question refers to 39
choose the option that best improves the underlined portion of the sentence.
a no change
b physician, innovator, diplomat, and religious thinker,
c physician and innovator and diplomat, and religious thinker,
d physician, innovator, diplomat and religious thinker,

Explanation:

To solve this, we analyze the parallel structure of the list. The original (or the underlined part we need to improve) should have a consistent comma - and - conjunction (or just commas for the last item with "and") structure. Option B uses commas to separate the items "physician, innovator, diplomat, and religious thinker", which is the correct parallel structure. Option C has an incorrect "and" placement that disrupts the parallelism. Option D misses a comma before "and" for the last item in a list of four, which is non - standard. Option A (NO CHANGE) would be incorrect as the original (implied) structure likely had an error, and B provides the correct parallel list structure.

Answer:

B. physician, innovator, diplomat, and religious thinker,