[求助]885 -section C- 3

885 section c - 3

3.The original employees hired, who had been there over twenty years,  were fiercely loyal to the firm, and it offered no retirement benefits or profit sharing to any employees.

A) and it offered no

B) and it offered neither

c)still it offered no

D)though it offered no

E)though it offered neither

D is the right answer

My questions are, 1. why D is the right answer?

                                2. I am confused about why there are two verbs in this sentence, "hired" and "were "?

can someone solve my problems? Thanks !

i am so frustrated about this question...

I need some help here..

Here is another one

885 - section D - 18

The national labor Relations Act expressly forbids unions from engaging in secondary boycoots against companies not directly involved in a labor dispute.

A) unions from engaging in

D) unions from becoming engaged with

the answer is D....

Why A is wrong? i think that "engage in" is a correct idiom.