Hello native English speakers. Could you help me to work out my queries about the relative pronoun "who(m)" ?
1a. He was not who he seemed to be.
1b. He was not the man that he seemed to be.
1c. He was not that he seemed to be.
1d. He was not he seemed to be.
Query: Which is/are grammatically correct?
2a . Whom the gods love die young.
2b. Those who the gods love die young.
2c. Those whom the gods love die young.
2d. Those who the gods love die when they are young.
2e. Those who the gods love die when young.
2f. Those whom, when being young, the gods love die.
2g. Those who, when young, the gods love die.
Query: Which is/are grammatically correct?