Which statement(s) are true about inscribed angles?
Statement 1: The vertex of an inscribed angle like on the circle.
Statement 2: The sides of an inscribed angle are tangent lines to the circle.
Statement 3: The sides of an inscribed angle are chords of a circle.
Statement 4: The vertex is an inscribed angle lies outside a circle.
A. 4 only
B. 1 only
C. 1&3 only
D. 2&4 only