Step 1: Background.
India in 2014 witnessed several important visits by global leaders, especially after the new government came into power in May 2014. These visits were significant for diplomatic, trade, and strategic relations.
Step 2: Dignitaries who visited India in 2014.
- Xi Jinping (President of China) visited India in September 2014 to strengthen bilateral ties and investments.
- Tony Abbott (Prime Minister of Australia) visited in September 2014, marking an important milestone in Indo-Australian relations, especially in nuclear cooperation.
- Joachim Gauck (President of Germany) visited India in February 2014.
- David Johnston (Governor General of Canada) visited in February 2014 to boost Indo-Canadian ties.
- Shinzo Abe (Prime Minister of Japan) visited India in January 2014 as the Chief Guest at India’s Republic Day celebrations.
Step 3: Elimination of wrong options.
- (B) Incorrect: David Cameron did not visit India in 2014.
- (C), (D), (E) Incorrect: Kim Jong Un and Francois Hollande did not visit India in 2014.
Thus, only option (A) lists the correct dignitaries.
\[
\boxed{\text{Ji Xinping, Tony Abbott, Joachim Gauck, David Johnston, Shinzo Abe}}
\]