The correct answer is A. rose.
The verb “rose” is the simple past tense of the verb “to rise,” which means to move up from a lower to a higher position. In this case, the sun is moving up from the horizon to the sky.
The verb “raised” is the past tense of the verb “to raise,” which means to lift something up. In this case, the sun is not being lifted up by anything, so it does not make sense to use the verb “raised.”
The verb “arose” is the past tense of the verb “to arise,” which means to come into being or to appear. In this case, the sun is not coming into being or appearing, so it does not make sense to use the verb “arose.”
The verb “aroused” is the past tense of the verb “to arouse,” which means to wake someone up or to excite someone. In this case, the sun is not waking someone up or exciting someone, so it does not make sense to use the verb “aroused.”