Who is recognised as the 45th President of the United States of America?

Introduction / Context:
Numbered positions in political offices are a common topic in general knowledge exams. The President of the United States is numbered in sequence, and the forty fifth person to hold this office is a figure well known from recent world news. This question tests whether learners can correctly match the ordinal number with the right individual.

Given Data / Assumptions:

• The office in question is the President of the United States.
• The number specified is forty five.
• The options are drawn from modern American political leaders and candidates.

Concept / Approach:
To answer, a learner should recall the chronological order of modern United States Presidents. George W. Bush was the forty third President, Barack Obama was the forty fourth, and Donald Trump followed as the forty fifth. Hillary Clinton was a presidential candidate but did not hold the office, while Joe Biden came later as the forty sixth.

Step-by-Step Solution:
Step 1: Remember that George W. Bush served two terms and is counted as the forty third President.Step 2: Recall that Barack Obama succeeded Bush and is counted as the forty fourth.Step 3: Note that Donald Trump took office after Barack Obama, making him the forty fifth President.Step 4: Verify that Hillary Clinton never became President and that Joe Biden is associated with a later number.

Verification / Alternative check:
A helpful verification is to connect each President with major historical events. Barack Obama is known for the Affordable Care Act and being the first African American President. Donald Trump is linked with the America First slogan and a term beginning in January twenty seventeen. This timeline confirms that Trump was the forty fifth in the sequence.

Why Other Options Are Wrong:
Hillary Clinton did contest the presidential election but lost and therefore cannot be counted as any numbered President. Barack Obama is the forty fourth, not the forty fifth. George W. Bush preceded Obama and is the forty third. Joe Biden is the forty sixth President and thus does not fit the number in the question. These distinctions rule out every option except Donald Trump.

Common Pitfalls:
Test takers sometimes confuse presidency numbers because they remember the names but not the exact count, especially when the leaders are recent. Another trap is to pick the most discussed name in news without considering the timeline. Keeping a simple sequence in mind Bush forty three, Obama forty four, Trump forty five, Biden forty six is an effective way to avoid such confusion.

Final Answer:
The correct answer is Donald Trump.