The management was forced to yield to the striking employees

[BTGmoderatorDC]

The management was forced to yield to the striking employees demanding that they should upgrade the archaic work safety rules and enhance the remuneration.

A. demanding that they should
B. demanding it to
C. and their demand to
D. who demanded that it should
E. who demanded it to

[Ali Tariq]

What's the source?
'demand' takes command subjunctive.

Have a look at the following SC-

In one of the most stunning reversals in the history of marketing, the Coca-Cola company in July 1985 yielded to thousands of irate consumers demanding that it should bring back the original Coke formula.

A) demanding that it should
B )demanding it to
C )and their demand to
D )who demanded that it
E) who demanded it to
OA D

or at this one -
https://www.beatthegmat.com/demanding-v ... 95317.html