**Core Concept**
Ectopic pregnancy is a life-threatening condition where a fertilized egg implants outside the uterus, most commonly in the fallopian tube. Medical treatment aims to terminate the pregnancy while preserving the fallopian tube and minimizing complications.

**Why the Correct Answer is Right**
The correct medical treatment for ectopic pregnancy involves the administration of methotrexate, a chemotherapy agent that inhibits dihydrofolate reductase (DHFR) enzyme, leading to the death of rapidly dividing cells, such as those in the ectopic pregnancy. Methotrexate is effective in 80-90% of cases, reducing the need for surgical intervention and its associated complications. The success of methotrexate treatment is closely monitored through serial beta-hCG levels and ultrasound assessments.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not provide specific information regarding medical treatment for ectopic pregnancy.
**Option B:** This option is incorrect because it is a surgical approach, not a medical one.
**Option C:** This option is incorrect because it is not a recognized medical treatment for ectopic pregnancy.

**Clinical Pearl / High-Yield Fact**
Methotrexate treatment for ectopic pregnancy is most effective when initiated early, ideally within 3-4 weeks of conception, and when the beta-hCG level is below 5,000 mIU/mL.

**Correct Answer: B. Surgical intervention is considered when medical treatment fails.**