In a $3$ node Cassandra cluster, a Keyspace is created with a replication factor of $3.$ Answer the following questions, in each of the scenarios mentioned below:

$($a$).$ Consistency of reads.

$($b$).$ How many nodes can be lost without data loss.

$($C$).$ What percentage of data is held in each of the nodes.

Scenario $1$: Write Level $-$ Quorum, Read Level $-$ One

Scenario $2$: Write Level $-$ All, Read Level $-$ One

Scenario $3$: Write Level $-$ One. Read Level $-$ All

Scenario $4$: Write Level $-$ Two, Read Level One