Выберите члены последовательности \(\displaystyle (x_n){\small ,}\)расположенные между \(\displaystyle x_{15}\)и \(\displaystyle x_{20}{\small .}\)

• \(\displaystyle x_{16}\)
• \(\displaystyle x_{14}\)
• \(\displaystyle x_{17}\)
• \(\displaystyle x_{15}\)
• \(\displaystyle x_{21}\)
• \(\displaystyle x_{19}\)
• \(\displaystyle x_{18}\)
• \(\displaystyle x_{20}\)