A base is a substance that can donate a hydroxide ion.
option A)donate is the right option.
Explanation:
bases are substances that, in watery arrangement, discharge hydroxide (OH−) particles, are dangerous to the touch, can taste severe if a soluble base, change the shade of markers (e.g., turn red litmus paper blue), respond with acids to shape salts, advance certain concoction responses (base catalysis),
