Which of the following are correct examples of the statement "mathematics is abstract"?
(a) Solving word problems that apply mathematical concepts to everyday life.
(b) Using symbols and letters to represent numbers in algebraic expressions.
(c) Creating geometric shapes and analyzing their properties without physical models.
Choose the correct option:
1
(a) and (b)
2
(b) and (c)
3
(a) and (c)
4
only (b)