Pedigree analysis : autosomal or mitochondrial
Mitochondrial because all the offsprings have the same trait as that of the female parent. Lets go through the possibilities one at a time. Assuming you have no carriers (you do not have any carrier symbols) we can work out the following.

Autosomal Recessive? 

This might be the case if we assume the male in the first generation is a carrier. 

Autosomal Dominant?

This might be the case but it is unlikely. Looking at the first generation possibly yes, as 50% of offspring have the trait. Looking at the second generation however only 3 out of 9 offspring have the trait. Making autosomal dominant unlikely (but it is still a possibility.)

In the test, if you have to go with one option, mitochondrial inheritance is the best because there are no assumptions at all but if multiple options may be correct, you can have any of them.