Pick out the most effective pair of words from the given pair of words to make the sentence/sentences meaningfully complete.
Pick out the most effective pair of words from the given pair of words to make the sentence/sentences meaningfully complete.
Whether it be shallow or not, commitment is the................ , the bedrock of any............ loving relationship.
1). expression perfunctory
2). foundation genuinely
3). manifestation deep
4). key alarmingly