Answer:
For the given question, out of the 4 options provided, the correct one is
option C. Both
Step-by-step explanation:
Both the given option A and option B are correct
Earlier, prior to Kepler's most of the planets that were discovered then are those with larger masses with the help of transit technique.
The planets with lower or lighter masses were not detectable due to the reason that at that time we did not have latest technologies and methods as of today to detect planets with lower masses which is now possible by making use of spectroscopic changes in emission from the stars by Doppler shift.