The pronoun it in the following lines refers to 1464. iron was its edge, all etched with poison,
1465. with battle-blood hardened, nor blenched it at fight
1466. in hero's hand who held it ever,
1467. on paths of peril prepared to go
1468. to folkstead of foes. Not first time this
1469. it was destined to do a daring task.

1. c- the tunnel project was worthwhile.

2. b- to inform about the value of the tunnel project

i think the correct answer would be adjustments in life roles.  this causes for one to adjust or change totally his/her career or lifestyle since the present is not beneficial to the life role he is at. for instance, you became a mother you would of course stop going to malls and enjoying life outside. you would be staying at home taking care of your child.

your awnser would be b.