Through careful examination, competent diagnosing and successful treat

I would go with C.

It is physicians that should be the subject of the second sentence, so A and B are out.

Develop growing trust (E) is awkward (pleonastic).

Between C and D, C sounds better.

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The sentence tests parallelism. The marker AND suggests we need a parallel list
and noun- examination - in non-underlined portion suggests we need a list of nouns.
Diagnosing = verb-ing acting as action noun, out since it is not parallel


We need adjective successful to describe more about treatment rather than a conditional statement. Main verb's usage - lead - is also incorrect since
now the intended meaning is distorted.


Same error as A


diagnosis, examination and treatment are now grammatically and logically parallel.
them refers back to physicians, no ambiguity here.


growing without coma incorrectly modifies patients, we need a verb - grow - as in D, not a modifier.
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(A) diagnosing and successful treatment, patients grow to trust their physicians - parallelism error
(B) diagnosis and treatment, if successful, lead patients to trust their physicians - verb without subject
(C) and successful diagnosing and treatment, physicians develop trust in their patients - meaning error
(D) diagnosis and successful treatment, physicians help their patients grow to trust them
(E) diagnosis and successful treatment, physicians develop in their patients growing trust - redundancy error

My answer is D.

(A) diagnosing and successful treatment, patients grow to trust their physicians
(B) diagnosis and treatment, if successful, lead patients to trust their physicians
A and B out as physicians have to be a subject.

(C) and successful diagnosing and treatment, physicians develop trust in their patients

Two issues:
(1) first "and" changes the list, making the list of two elements: careful examination, competent and successful diagnosing and treatment. Usage of comma to connect a list of two elements is incorrect.
(2) second reason is that "diagnosis" works better for this list of noun entities than "diagnosing"


(D) diagnosis and successful treatment, physicians help their patients grow to trust them
(E) diagnosis and successful treatment, physicians develop in their patients growing trust

Between D and E, I would say it is E; smth wrong with meaning in the option D.
Waiting for QA

IMO C Through careful examination, competent and successful diagnosing and treatment, physicians develop trust in their patients
develop trust in their patients is correct construciton of sentence ..

(A) diagnosing and successful treatment, patients grow to trust their physicians :
DIAGNOSING, PARALLELISM ERROR.
START MODIFIER MODIFIES PHYSICIANS, NOT PATIENTS.

(B) diagnosis and treatment, if successful, lead patients to trust their physicians:
NO MAIN CLAUSE

(C) and successful diagnosing and treatment, physicians develop trust in their patients: OPPOSITE MEANING.

(D) diagnosis and successful treatment, physicians help their patients grow to trust them: THEM IS AMBIGUOUS. OTHERWISE CORRECT.

(E) diagnosis and successful treatment, physicians develop in their patients growing trust: MAIN CLAUSE IS AWKWARDLY CONSTRUCTED.

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