What fatty acid is this?

It contains 12 carbon atoms. Counting the carbon of the carboxylic acid group as carbon 1, there is a cis carbon-carbon double bond between carbons 5 and 6 of the chain. You should ume that, unless otherwise stated, all the carbon atoms are attached toother carbon atoms by single covalent bonds and there are sufficient hydrogen atoms to satisfy the valency of each carbon atom. What is it?