|Question 4Verbal

Source Texts

Text
Often, the Nobel Prize in Chemistry is given to a single person, such as Frederick Sanger in 1958. But sometimes the Nobel Committee wants to reward work attributed to two or three individuals, in which case, the award is given       . For instance, in 2008, Roger Y. Tsien was among those awarded for "the discovery and development of the green fluorescent protein, GFP."
Which choice completes the text with the most logical and precise word or phrase?
ceremoniously
A
reluctantly
B
jointly
C
retroactively
D