Indicate whether each of the following phosphorylation events typically activates (A) or inactivates (I) the protein that is being phosphorylated. Your answer would be a four-letter string composed of letters A and I only, e.g. IIIA.
( ) Phosphorylation of Cdc25 by M-Cdk
( ) Phosphorylation of condensin subunits by M-Cdk
( ) Phosphorylation of kinesin-5 by Aurora-A
( ) Phosphorylation of Ndc80 subunits by Aurora-B