दी गई समस्या समपटल सर्वेक्षण (plane table method) की किस विधि से संबंधित है? 'लुप्त विवरणों का पता लगाने के लिए किसी स्थान पर दो बिंदुओं का उपयोग करके एक नया स्टेशन बिंदु स्थापित करना'

In survey work using a total station with reflector measurements, which of the following sequence of temporary adjustments must be performed at a station?

While carrying out a total station survey on one bank of a 250 m wide river, it is necessary to plot electric transmission posts on the opposite bank. No provision exists for crossing the river and the posts are inaccessible. In which mode should the survey work be done?