Final answer:
The "Eastern Highlands" of Africa stretch from Ethiopia to the Cape of Good Hope, which is the correct answer to the student's question.
Step-by-step explanation:
The "Eastern Highlands" of Africa is a region comprising various highlands and mountain ranges. This area extends from Ethiopia to the south, across the highlands, including part of the Great Rift Valley, and continues through countries like Kenya and Uganda, until it reaches the southern part of Tanzania.
Considering the details provided in the question options and the geographical extent of the Eastern Highlands, it is accurate to say that the range stretches from Ethiopia to the Cape of Good Hope. Therefore, the correct answer to the question 'The "Eastern Highlands" of Africa reach from what point to what point?' is B. Ethiopia to the Cape of Good Hope.