|Question 16Verbal

Source Texts

Text
To coders like Black Girls Code founder Kimberly Bryant, the computer programming languages C# and S-Lang have a clear difference: the former is an object-oriented language while the latter is not. Because both languages require highly technical knowledge to understand, though, laypeople        to distinguish between them.
Which choice completes the text so that it conforms to the conventions of Standard English?
struggled
A
had struggled
B
struggle
C
were struggling
D