Explanation:

Let’s break this down step by step:

- The symbols have swapped meanings:

- '+' means subtraction

- '-' means multiplication

- '×' means addition

- '÷' means division

- So, rewrite the expression:

3 - 21 + 153 × 17 ÷ 26

becomes

3 * 21 - 153 + 17 / 26

- Calculate in the correct order (multiplication/division first):

- 3 * 21 = 63

- 17 / 26 ˜ 0.6538, but since options are integers, check if that’s a typo; check if order should be:

153 + 17 = 170 (using × as addition)

Now, do

3 * 21 = 63

170 / 26 ˜ 6.538

- Now put it together using '-' as multiplication and '+' as subtraction:

63 - 170 / 26

170 / 26 = about 6.538

63 - 6.538 ˜ 56.462

But hold on—are we following order of operations? Let’s check with brackets for operator precedence:

- Do multiplications/divisions first:

- 3 – 21 (which means 3 * 21 = 63)

- 153 × 17 (which means 153 + 17 = 170)

- 170 ÷ 26 (which means 170 / 26 ˜ 6.538)

Now, the expression is:

63 + 6.538 (because original '+' means subtraction)

But ‘+’ means subtraction, so:

63 - 6.538 ˜ 56.462

So the closest integer in the options is 58.

Here are the options mapped out:

- 1: 84

- 2: 80

- 3: 76

- 4: 58  This fits our calculation best.

The correct answer is:

Option: 4, 58

That fits the steps and the logic. The key is translating the operators and carefully working through each stage.