The correct statement is - C. The Gulf coast is the most popular tourist area.
The Gulf coast of Mexico is by far the most popular tourist area in the country. The climate is pleasant throughout most of the year, there's beautiful long beaches, the water is warm with lots of biodiversity in it, and the landscape behind the coastal line is tropical, and all of this makes it very attractive for tourists. Since it is the area that is the most attractive for tourist in the country, most of investments in the tourist sector are focused right here, so lots of nice hotels, resorts, clubs, pubs have been opened and are having a high standard.
The circle has two forms of equation - General Form and Standard Form. The general form of the equation of the circle would be x^2 + y^2 + Dx + Ey + F = 0. The constants of this equation are D , E and F. The way to use general form is to complete the square and then proceed the equation in standard form. In that way we can identify the radius and center of the given circle.