Which verb form correctly completes the sentence?

my aunt the dinner bell.

a.
rung

b.
has rang

c.
rang

d.
ringed

they insisted that there was not enough time to learn everything.  

explanation:

if they were going to steal the answers that is simply because they insisted that there was not enough time to learn everything.  

that is literally a whole assignment and i'm not sure anyone in their right mind or even wrong mind is going to do an entire assignment for someone just for 100 points on a website. sorry to tell you like

yes it did. that's been proven time and again. i used to be an elementary school teacher myself, and i worked with thousands of kids with cerebral palsy across the nation and in canada. what i observed was that children with dyslexia were struggling to read and learn. it was a serious issue that impacted teachers all over the country, but it was so often ignored and denied.

and children with disabilities – children who have learning disabilities – they got to spend a lot of time reading in a classroom.

i could not believe there was never any kind of conversation in my school about how to provide more opportunities for students with disabilities. the education system was still looking for ways to keep the pressure on children's teachers to improve their grades, that they have to be teachers who were in the grade for eight years, and they weren't even being evaluated.

so why weren't parents or guardians concerned about whether their kids were being by this system, if they could not see their kids in a classroom that they could improve? why couldn't you say, "i think you need to improve your reading skills," right? and they certainly believed it when i pointed it out to them. it doesn't matter if you said, "you need to go to an optometry class, or to a teacher's camp