question 1) Which of the following chaincode transactions not update the ledger ?

A) Instantiate

B) Init

C) Invoke

D) query

PLEASE ANSWER ONLY IF YOU ARE SURE. THERE IS ONE CORRECT ANSWER. PLEASE GIVE EXPLANATION

question 2) Consider a Hyperledger Fabric network with 4 Organizations (Org1, Org2, Org3, Org4) with 2 channels (Channel1, Channel2). The membership in the channels is defined as Channel1 (all Orgs) and Channel2 (Org1,Org3,Org4).

What are the valid endorsement policies for channels :

(MULTIPLE CORRECT ANSWERS)

A)Channel 1 AND {Org1.admin, Org1.member}

B)Channel 2 AND {Org2.admin, Org3.member, Org4.admin}

C)Channel 2 OR {Org2.admin, Org3.member, Org4.admin}

D)Channel 1 OR {Org1.admin, Org3.member, Org4.admin}