The Soviet Union collapsed due to

overinvestment in new technology

the falling of price oil

Vladimir Putin becoming president

The Soviet Union did not collapse specifically due to overinvestment in new technology, falling oil prices, or the rise of Vladimir Putin as president. These factors may have had some impact, but they were not the primary reasons for the collapse.

The Soviet Union collapsed primarily due to a combination of economic inefficiency, political and social unrest, and the failure of its central planning system. The country had been facing significant economic problems, including a stagnating economy, scarcity of consumer goods, and a large budget deficit. Additionally, there was widespread dissatisfaction with the political system, lack of freedom, corruption, and censorship.

The Soviet Union also experienced significant challenges in maintaining control over its republics, many of which were seeking greater autonomy or independence. Nationalism and demands for self-determination grew stronger in different regions of the country. This was particularly evident in the republics of Eastern Europe, which eventually led to their independence and the dissolution of the Soviet Union.

Furthermore, the Soviet Union's military involvement in Afghanistan, which began in 1979, drained significant resources and had a negative impact on the nation's image and morale. The costly war, combined with the failure to achieve its objectives, further weakened the Soviet Union.

While falling oil prices in the 1980s did put additional strain on the Soviet economy, it was not the primary cause of the collapse. The Soviet Union heavily relied on oil exports, and when prices dropped, it negatively affected their revenue. However, the economic problems and internal issues mentioned earlier were already present before the fall in oil prices occurred.

Lastly, Vladimir Putin becoming president of Russia in 1999 happened after the collapse of the Soviet Union. Putin's rise to power and subsequent actions shaped Russia's post-Soviet trajectory, but they were not the cause of the Soviet Union's collapse.

pick one of the most likely correct answers

The most likely correct answer for the collapse of the Soviet Union is the combination of economic inefficiency, political and social unrest, and the failure of its central planning system.

pick one of the listed

If I have to choose one from the listed options, it would be the economic inefficiency and problems in the central planning system as the primary reasons for the collapse of the Soviet Union.