Ramon and edith have been married for 60 years and, when a local news station interviews them on their anniversary, they both say that their relationship keeps getting better and better, every year. what does longitudinal research on marital relationships say about how marital relationships change over time?
a. what matters is what they believe and if they believe their relationship is getting better, it must be getting better.
b. when a marriage has lasted as long as theirs has, it is almost certainly getting better over time.
c. in general, people in very long-term relationships will say they are getting better even if they are getting worse.
d. while people may say their relationship is getting better, research indicates that their actual ratings of the relationship will either stay the same or get worse.

Aplaintiff filed a civil action based on negligence against a defendant in federal district court, alleging that the defendant negligently ran a red light at an intersection and collided with the plaintiff's vehicle, causing the plaintiff's injuries. a week after the close of discovery, the plaintiff filed a motion for summary judgment on the issue of whether the defendant was negligent. with the motion, the plaintiff filed (i) his own sworn affidavit, which stated that the traffic signal was green as he entered the intersection, (ii) an affidavit of a witness who was driving the car behind him, which stated that the witness saw the entire incident and that the plaintiff's traffic signal was green as he approached and entered the intersection; and (iii) an affidavit of another witness, which stated that she saw the entire incident and that the defendant's signal had been red for several seconds before the defendant entered the intersection and was still red when the defendant entered the intersection. the defendant filed a response to the motion, noting that her answer denied negligence and further denied that her traffic signal was red, and argued that the issue of negligence and the issue of whether her traffic signal was red were in dispute, so those issues should be tried to a jury. how should the court rule on the plaintiff's motion?