Final answer:
The passage supports the conclusion that the Kepler Space Telescope has discovered numerous exoplanets.
Step-by-step explanation:
The passage supports the conclusion that the Kepler Space Telescope has discovered numerous exoplanets. The passage states that the Kepler telescope has been responsible for the discovery of most exoplanets, especially at smaller sizes, and shows a wide range of planet sizes from smaller than Earth to larger than Jupiter. Although the passage mentions the 4-year lifetime of the mission and the difficulty of detecting very small planets, it does not support conclusions about the telescope primarily focusing on studying black holes, being a manned mission to outer space, or having a short lifespan due to technical issues.