In recent years, scholars of psychology have begun to examin

[LinqingJ930]

In recent years, scholars of psychology have begun to examine more seriously the notion, first proposed by John Keats, of "negative capability"—the idea that maintaining calmness amid uncertainty and doubt, rather than experiencing an anxious urge to find solutions, is a genuine talent and possibly even a therapeutic tool.

A. In recent years, scholars of psychology have begun to examine more seriously the notion, first proposed by John Keats, of "negative capability"—the

B. Proposed first by John Keats, the notion of "negative capability," which scholars of psychology began to examine more seriously in recent years: this is the

C. The notion of "negative capability," which John Keats first proposed and scholars of psychology recently began to take more seriously—the

D. Proposed first by John Keats, and recently scholars of psychology began to take it more seriously, the notion of "negative capability" is the

E. First proposed by John Keats, scholars of psychology have recently begun to take the notion of "negative capability" more seriously; this is the

Why is A right? Can some verbs that indicate extremely short period such as begin and finish use continuous tense or perfect tense?