The Prime Minister along with his Cabinet colleagues (1)/ have been welcomed by the Chief Minister (2)/ata formal ceremony. (3)/No error. (4)

Options

A. 1 The Prime Minister along with his Cabinet colleagues
B. 2 have been welcomed by the Chief Minister
C. 3 at a formal ceremony.
D. 4 No error

Answer

2

Explanation

has will replace have because -
The Prime Minister along with his Cabinet colleagues is a Singular Subject and hence Singular Verb will be used.
The words which follow terms like along with, as well as, together with are not the part of the Subject and hence, the Verb agrees with the main subject.
Hence, has been welcomed by the Chief Minister is the right usage