Yes the limit was set in the past but it's effect is still there. So, why not present perfect. I am also confused. This is a really confusing topic. I also chose C as my answer choice. Anyone, please explain the concept properly, like what are the indicators through which we can definitely say that ...

remember the tense sequence rule (Past+Conditional) and (Present+Future)

In the answer choice B, the anticident of it is not clear. Its refers to sound or water is not clear. Also, the fragment having its is most prob. unidiomatic. I hope this would help you.

Please Help

While Jackie Robinson was a Brooklyn Dodger, his courage in the face of physical threats and verbal attacks was not unlike that of Rosa Parks, who refused to move to the back of a bus in Montgomery, Alabama. (A) not unlike that of Rosa Parks, who refused (B) not unlike Rosa Parks, who refused (C) li...

help needed

Framed by traitorous colleagues, Alfred Dreyfus was imprisoned for twelve years before there was exoneration and his freedom. (A) there was exoneration and his freedom (B) he was to be exonerated with freedom (C) being exonerated and freed (D) exoneration and his freedom (E) being freed, having been...

Please help

Although just inside the orbit of Jupiter, amateur astronomers with good telescopes should be able to see the comet within the next few weeks. (A) Although just inside the orbit of (B) Although it is just inside the orbit of (C) Just inside the orbit of (D) Orbiting just inside (E) Having orbited j...

IMO is A. No option other than A can help to evaluate the conclusion.

The statement in option D is not very clear. Could you please elaborate the meaning of the D option. Rest are clear.

OA is D.