A b d i believe if it is incorrect i am sorry but i think that is the answer
Answer: Kotekan
Explanation: This is a style of playing characteristic of Balinese gamelan music, used for playing at high speed, which is possible because the notes are split between two instruments, i.e between two musicians. In this way, parts of the music that are locked together (interlocked), in the aforementioned manner are quickly played, separating the notes. The two separate parts played on the two instruments are thus combined to form a single musical line that is heard as a whole, that is, as an inseparable part, though it consists of two parts. Given that the notes have been previously split into two instruments, then the way of playing is locked again in its entirety, fast playing is possible. One note core, that is, a separable note, can be divided into two, four, and even eight notes, which are merged again into a single note core by combining the playing of multiple instruments in the aforementioned interlocking method.
Source B is more credible because it is from a government site, so it is meant to inform. It has a quote that shows drones are in debate.
At first look, the sources seem similar. They both were written around the same period and the URL appears almost identical. However, it is important to notice that source A is from a website ending in ".net," while source B ends in ".gov." Government websites are always more credible than a website ending in ".com" or ".net." Also, source A has advertisements, which means it is mostly for entertainment. In comparison, source B has a quote from President Obama. Since the research is about the invention of drones and their controversial uses, source B is also more helpful since the title specifically mentions the rules and misuse of drones.