Choices of tools (5)
I believe the answer is:
picks
I believe this is a double definition.
'choices' is the first definition.
('pick' can be a synonym of 'choice')
'tools' is the second definition.
(pick is a kind of tool)
'of' acts as a link.
(Other definitions for picks that I've seen before include "tools for breaking up rock" , "Choices" , "Chooses - tools for breaking rocks" , "Goes for" , "More than one tool" .)