|Question 4Verbal

Source Texts

Text
Agglomeration economies arise when multiple firms in related industries _____ an area, as with ceramic tile manufacturers and nonconstruction ceramics manufacturers in London, UK. Economists have assumed that companies cluster for the same reasons, but Giulia Faggio et al. found that factors driving agglomeration in some cases are only weakly correlated with agglomeration in others.
Which choice completes the text with the most logical and precise word or phrase?
amass in
A
appeal to
B
intercede in
C
concur with
D