 Generally, which of the following best describes Brian's character?
This walk was part of a regular routine of physical exercise that kept his body hard and resilient in spite of long hours spent in the laboratory. Brian slowly acquired a complexion suitable for painting fire plugs. I don't care if you are—" Brian's eyes almost popped out as he saw a gloved hand reach around the guard's neck and jam a rag over his nose and mouth. "Right with you," the guard snapped and ran a few steps with them before a blackjack caught up with him and he folded into a corner. The electric eye tripped a screaming alarm, but the broken key in Brian's hands opened the complicated lock in a matter of seconds. Brian faltered to a stop and Crystal James pushed past him.
 Dutiful, oblivious, and practical
 Dutiful, oblivious, and practical  Smart, kind hearted, and humorous  Practical, humorous, and laid-back  Dutiful, meek, and persistent