The correct answer is option 2) Htin Kyaw. He is the President of the Republic of the Union of Myanmar.

Option 1) Aung San Suu Kyi is a prominent political figure in Myanmar and the State Counsellor, which is a position similar to that of a prime minister. However, she is not the president.

Option 3) Myint Swe is the Vice President of Myanmar, not the President.

Option 4) Henry Van Thio is also a Vice President of Myanmar, not the President.

In summary, Htin Kyaw is the current President of the Republic of the Union of Myanmar. Remember that Aung San Suu Kyi holds the position of State Counsellor.