how would an observer on train a witch is moving at nearly the speed of light view o'clock on train be which is moving at the same speed and in the same direction?

Answer 1

The clock on train B would appear to be the same width and to run at the same rate

Answer 2

The observer on train B will see clock A ticking slower than their own clock due to time dilation effects at high speeds. This is a consequence of special relativity, where time is experienced differently for two observers moving relative to each other at near light speeds.