Final answer:
A closed cervix with symptoms of vaginal spotting and uterine cramping in a client 8 weeks pregnant is indicative of a threatened abortion, where miscarriage is possible but not certain.
Step-by-step explanation:
The client who is 8 weeks pregnant and presents with vaginal spotting and uterine cramping but has a closed cervix, is experiencing symptoms that suggest a threatened abortion. A threatened abortion is a condition in which there is a possibility of miscarriage, but no miscarriage has inevitably occurred. With the cervix still being closed, there is no certainty that a miscarriage will happen, and the pregnancy may still continue without further complications. The other types of abortion mentioned, septic, therapeutic, and inevitable, do indeed have distinct characteristics but are not reflected in the described scenario.