Which line from the text suggests that mr. utterson placed greatest trust in the people he had known for many years?
a. "no doubt the feat was easy to mr. utterson; for he was undemonstrative at the best,"
b. "for all that, the two men put the greatest store by these excursions, counted them the chief jewel of each week,"
c. "his friends were those of his own blood or those whom he had known the longest; "
d. "and to such as these, so long as they came about his chambers, he never marked a shade of change in his demeanour."