To solve this problem, we need to identify which cellular structures contain microtubules. Let's analyze each option:$\newline \bullet$Option 1: Cilia, flagella, and peroxisomes.$\newline$ - Cilia and flagella are composed of microtubules arranged in a "9+2" structure, which is characteristic of eukaryotic cilia and flagella.$\newline$ - Peroxisomes, however, are not composed of microtubules; they are involved in metabolic processes like fatty acid oxidation.$\newline$ - Therefore, this option is incorrect.$\newline \bullet$Option 2: Spindle fibres, centrioles, and cilia.$\newline$ - Spindle fibres are made of microtubules and play a crucial role during cell division by separating chromosomes.$\newline$ - Centrioles are cylindrical structures composed of microtubules arranged in a "9+0" pattern.$\newline$ - Cilia, as mentioned earlier, contain microtubules.$\newline$ - Therefore, this option is correct.$\newline \bullet$Option 3: Centrioles, spindle fibres, and chromatin.$\newline$ - While centrioles and spindle fibres are composed of microtubules, chromatin is made of DNA and proteins, not microtubules.$\newline$ - Therefore, this option is incorrect.$\newline \bullet$Option 4: Centrosome, nucleosome, and centrioles.$\newline$ - The centrosome is an organelle that serves as the main microtubule organizing center and contains centrioles.$\newline$ - Nucleosomes are units of chromatin structure, composed of DNA wrapped around histone proteins, not microtubules.$\newline$ - Therefore, this option is incorrect.$\newline$Based on the analysis, the correct option is Option 2: Spindle fibres, centrioles, and cilia.